18638620

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:73

約数の個数: 192

約数和(自身を含む): 56448000

約数和(自身を除く): 37809380

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 19, 20, 22, 26, 28, 35, 38, 44, 49, 52, 55, 65, 70, 76, 77, 91, 95, 98, 110, 130, 133, 140, 143, 154, 182, 190, 196, 209, 220, 245, 247, 260, 266, 286, 308, 343, 364, 380, 385, 418, 455, 490, 494, 532, 539, 572, 637, 665, 686, 715, 770, 836, 910, 931, 980, 988, 1001, 1045, 1078, 1235, 1274, 1330, 1372, 1430, 1463, 1540, 1715, 1729, 1820, 1862, 2002, 2090, 2156, 2470, 2548, 2660, 2695, 2717, 2860, 2926, 3185, 3430, 3458, 3724, 3773, 4004, 4180, 4459, 4655, 4940, 5005, 5390, 5434, 5852, 6370, 6517, 6860, 6916, 7007, 7315, 7546, 8645, 8918, 9310, 10010, 10241, 10780, 10868, 12103, 12740, 13034, 13585, 14014, 14630, 15092, 17290, 17836, 18620, 18865, 19019, 20020, 20482, 22295, 24206, 26068, 27170, 28028, 29260, 32585, 34580, 35035, 37730, 38038, 40964, 44590, 48412, 49049, 51205, 54340, 60515, 65170, 70070, 71687, 75460, 76076, 84721, 89180, 95095, 98098, 102410, 121030, 130340, 133133, 140140, 143374, 169442, 190190, 196196, 204820, 242060, 245245, 266266, 286748, 338884, 358435, 380380, 423605, 490490, 532532, 665665, 716870, 847210, 931931, 980980, 1331330, 1433740, 1694420, 1863862, 2662660, 3727724, 4659655, 9319310, 18638620]

約数ペア:

[(1, 18638620), (2, 9319310), (4, 4659655), (5, 3727724), (7, 2662660), (10, 1863862), (11, 1694420), (13, 1433740), (14, 1331330), (19, 980980), (20, 931931), (22, 847210), (26, 716870), (28, 665665), (35, 532532), (38, 490490), (44, 423605), (49, 380380), (52, 358435), (55, 338884), (65, 286748), (70, 266266), (76, 245245), (77, 242060), (91, 204820), (95, 196196), (98, 190190), (110, 169442), (130, 143374), (133, 140140), (140, 133133), (143, 130340), (154, 121030), (182, 102410), (190, 98098), (196, 95095), (209, 89180), (220, 84721), (245, 76076), (247, 75460), (260, 71687), (266, 70070), (286, 65170), (308, 60515), (343, 54340), (364, 51205), (380, 49049), (385, 48412), (418, 44590), (455, 40964), (490, 38038), (494, 37730), (532, 35035), (539, 34580), (572, 32585), (637, 29260), (665, 28028), (686, 27170), (715, 26068), (770, 24206), (836, 22295), (910, 20482), (931, 20020), (980, 19019), (988, 18865), (1001, 18620), (1045, 17836), (1078, 17290), (1235, 15092), (1274, 14630), (1330, 14014), (1372, 13585), (1430, 13034), (1463, 12740), (1540, 12103), (1715, 10868), (1729, 10780), (1820, 10241), (1862, 10010), (2002, 9310), (2090, 8918), (2156, 8645), (2470, 7546), (2548, 7315), (2660, 7007), (2695, 6916), (2717, 6860), (2860, 6517), (2926, 6370), (3185, 5852), (3430, 5434), (3458, 5390), (3724, 5005), (3773, 4940), (4004, 4655), (4180, 4459)]