20214480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 320

約数和(自身を含む): 79994880

約数和(自身を除く): 59780400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 19, 20, 22, 24, 26, 30, 31, 33, 38, 39, 40, 44, 48, 52, 55, 57, 60, 62, 65, 66, 76, 78, 80, 88, 93, 95, 104, 110, 114, 120, 124, 130, 132, 143, 152, 155, 156, 165, 176, 186, 190, 195, 208, 209, 220, 228, 240, 247, 248, 260, 264, 285, 286, 304, 310, 312, 330, 341, 372, 380, 390, 403, 418, 429, 440, 456, 465, 494, 496, 520, 528, 570, 572, 589, 620, 624, 627, 660, 682, 715, 741, 744, 760, 780, 806, 836, 858, 880, 912, 930, 988, 1023, 1040, 1045, 1140, 1144, 1178, 1209, 1235, 1240, 1254, 1320, 1364, 1430, 1482, 1488, 1520, 1560, 1612, 1672, 1705, 1716, 1767, 1860, 1976, 2015, 2046, 2090, 2145, 2280, 2288, 2356, 2418, 2470, 2480, 2508, 2640, 2717, 2728, 2860, 2945, 2964, 3120, 3135, 3224, 3344, 3410, 3432, 3534, 3705, 3720, 3952, 4030, 4092, 4180, 4290, 4433, 4560, 4712, 4836, 4940, 5016, 5115, 5434, 5456, 5720, 5890, 5928, 6045, 6270, 6448, 6479, 6820, 6864, 7068, 7410, 7440, 7657, 8060, 8151, 8184, 8360, 8580, 8835, 8866, 9424, 9672, 9880, 10032, 10230, 10868, 11440, 11780, 11856, 12090, 12540, 12958, 13299, 13585, 13640, 14136, 14820, 15314, 16120, 16302, 16368, 16720, 17160, 17670, 17732, 19344, 19437, 19760, 20460, 21736, 22165, 22971, 23560, 24180, 25080, 25916, 26598, 27170, 27280, 28272, 29640, 30628, 32240, 32395, 32604, 34320, 35340, 35464, 38285, 38874, 40755, 40920, 43472, 44330, 45942, 47120, 48360, 50160, 51832, 53196, 54340, 59280, 61256, 64790, 65208, 66495, 70680, 70928, 76570, 77748, 81510, 81840, 84227, 88660, 91884, 96720, 97185, 103664, 106392, 108680, 114855, 122512, 129580, 130416, 132990, 141360, 153140, 155496, 163020, 168454, 177320, 183768, 194370, 212784, 217360, 229710, 252681, 259160, 265980, 306280, 310992, 326040, 336908, 354640, 367536, 388740, 421135, 459420, 505362, 518320, 531960, 612560, 652080, 673816, 777480, 842270, 918840, 1010724, 1063920, 1263405, 1347632, 1554960, 1684540, 1837680, 2021448, 2526810, 3369080, 4042896, 5053620, 6738160, 10107240, 20214480]

約数ペア:

[(1, 20214480), (2, 10107240), (3, 6738160), (4, 5053620), (5, 4042896), (6, 3369080), (8, 2526810), (10, 2021448), (11, 1837680), (12, 1684540), (13, 1554960), (15, 1347632), (16, 1263405), (19, 1063920), (20, 1010724), (22, 918840), (24, 842270), (26, 777480), (30, 673816), (31, 652080), (33, 612560), (38, 531960), (39, 518320), (40, 505362), (44, 459420), (48, 421135), (52, 388740), (55, 367536), (57, 354640), (60, 336908), (62, 326040), (65, 310992), (66, 306280), (76, 265980), (78, 259160), (80, 252681), (88, 229710), (93, 217360), (95, 212784), (104, 194370), (110, 183768), (114, 177320), (120, 168454), (124, 163020), (130, 155496), (132, 153140), (143, 141360), (152, 132990), (155, 130416), (156, 129580), (165, 122512), (176, 114855), (186, 108680), (190, 106392), (195, 103664), (208, 97185), (209, 96720), (220, 91884), (228, 88660), (240, 84227), (247, 81840), (248, 81510), (260, 77748), (264, 76570), (285, 70928), (286, 70680), (304, 66495), (310, 65208), (312, 64790), (330, 61256), (341, 59280), (372, 54340), (380, 53196), (390, 51832), (403, 50160), (418, 48360), (429, 47120), (440, 45942), (456, 44330), (465, 43472), (494, 40920), (496, 40755), (520, 38874), (528, 38285), (570, 35464), (572, 35340), (589, 34320), (620, 32604), (624, 32395), (627, 32240), (660, 30628), (682, 29640), (715, 28272), (741, 27280), (744, 27170), (760, 26598), (780, 25916), (806, 25080), (836, 24180), (858, 23560), (880, 22971), (912, 22165), (930, 21736), (988, 20460), (1023, 19760), (1040, 19437), (1045, 19344), (1140, 17732), (1144, 17670), (1178, 17160), (1209, 16720), (1235, 16368), (1240, 16302), (1254, 16120), (1320, 15314), (1364, 14820), (1430, 14136), (1482, 13640), (1488, 13585), (1520, 13299), (1560, 12958), (1612, 12540), (1672, 12090), (1705, 11856), (1716, 11780), (1767, 11440), (1860, 10868), (1976, 10230), (2015, 10032), (2046, 9880), (2090, 9672), (2145, 9424), (2280, 8866), (2288, 8835), (2356, 8580), (2418, 8360), (2470, 8184), (2480, 8151), (2508, 8060), (2640, 7657), (2717, 7440), (2728, 7410), (2860, 7068), (2945, 6864), (2964, 6820), (3120, 6479), (3135, 6448), (3224, 6270), (3344, 6045), (3410, 5928), (3432, 5890), (3534, 5720), (3705, 5456), (3720, 5434), (3952, 5115), (4030, 5016), (4092, 4940), (4180, 4836), (4290, 4712), (4433, 4560)]