21400080

素因数分解:

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

素因数の和:86

約数の個数: 160

約数和(自身を含む): 75411840

約数和(自身を除く): 54011760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 24, 26, 30, 38, 39, 40, 48, 52, 57, 60, 65, 76, 78, 80, 95, 104, 114, 120, 130, 152, 156, 190, 195, 208, 228, 240, 247, 260, 285, 304, 312, 361, 380, 390, 456, 494, 520, 570, 624, 722, 741, 760, 780, 912, 988, 1040, 1083, 1140, 1235, 1444, 1482, 1520, 1560, 1805, 1976, 2166, 2280, 2470, 2888, 2964, 3120, 3610, 3705, 3952, 4332, 4560, 4693, 4940, 5415, 5776, 5928, 6859, 7220, 7410, 8664, 9386, 9880, 10830, 11856, 13718, 14079, 14440, 14820, 17328, 18772, 19760, 20577, 21660, 23465, 27436, 28158, 28880, 29640, 34295, 37544, 41154, 43320, 46930, 54872, 56316, 59280, 68590, 70395, 75088, 82308, 86640, 89167, 93860, 102885, 109744, 112632, 137180, 140790, 164616, 178334, 187720, 205770, 225264, 267501, 274360, 281580, 329232, 356668, 375440, 411540, 445835, 535002, 548720, 563160, 713336, 823080, 891670, 1070004, 1126320, 1337505, 1426672, 1646160, 1783340, 2140008, 2675010, 3566680, 4280016, 5350020, 7133360, 10700040, 21400080]

約数ペア:

[(1, 21400080), (2, 10700040), (3, 7133360), (4, 5350020), (5, 4280016), (6, 3566680), (8, 2675010), (10, 2140008), (12, 1783340), (13, 1646160), (15, 1426672), (16, 1337505), (19, 1126320), (20, 1070004), (24, 891670), (26, 823080), (30, 713336), (38, 563160), (39, 548720), (40, 535002), (48, 445835), (52, 411540), (57, 375440), (60, 356668), (65, 329232), (76, 281580), (78, 274360), (80, 267501), (95, 225264), (104, 205770), (114, 187720), (120, 178334), (130, 164616), (152, 140790), (156, 137180), (190, 112632), (195, 109744), (208, 102885), (228, 93860), (240, 89167), (247, 86640), (260, 82308), (285, 75088), (304, 70395), (312, 68590), (361, 59280), (380, 56316), (390, 54872), (456, 46930), (494, 43320), (520, 41154), (570, 37544), (624, 34295), (722, 29640), (741, 28880), (760, 28158), (780, 27436), (912, 23465), (988, 21660), (1040, 20577), (1083, 19760), (1140, 18772), (1235, 17328), (1444, 14820), (1482, 14440), (1520, 14079), (1560, 13718), (1805, 11856), (1976, 10830), (2166, 9880), (2280, 9386), (2470, 8664), (2888, 7410), (2964, 7220), (3120, 6859), (3610, 5928), (3705, 5776), (3952, 5415), (4332, 4940), (4560, 4693)]