21474960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6883}}^1$

素因数の和:6912

約数の個数: 80

約数和(自身を含む): 71703744

約数和(自身を除く): 50228784

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6883, 13766, 20649, 27532, 34415, 41298, 55064, 68830, 82596, 89479, 103245, 110128, 137660, 165192, 178958, 206490, 268437, 275320, 330384, 357916, 412980, 447395, 536874, 550640, 715832, 825960, 894790, 1073748, 1342185, 1431664, 1651920, 1789580, 2147496, 2684370, 3579160, 4294992, 5368740, 7158320, 10737480, 21474960]

約数ペア:

[(1, 21474960), (2, 10737480), (3, 7158320), (4, 5368740), (5, 4294992), (6, 3579160), (8, 2684370), (10, 2147496), (12, 1789580), (13, 1651920), (15, 1431664), (16, 1342185), (20, 1073748), (24, 894790), (26, 825960), (30, 715832), (39, 550640), (40, 536874), (48, 447395), (52, 412980), (60, 357916), (65, 330384), (78, 275320), (80, 268437), (104, 206490), (120, 178958), (130, 165192), (156, 137660), (195, 110128), (208, 103245), (240, 89479), (260, 82596), (312, 68830), (390, 55064), (520, 41298), (624, 34415), (780, 27532), (1040, 20649), (1560, 13766), (3120, 6883)]