64941520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1303}}^1$

素因数の和:1412

約数の個数: 80

約数和(自身を含む): 174631680

約数和(自身を除く): 109690160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1246, 1303, 1424, 1780, 2492, 2606, 3115, 3560, 4984, 5212, 6230, 6515, 7120, 9121, 9968, 10424, 12460, 13030, 18242, 20848, 24920, 26060, 36484, 45605, 49840, 52120, 72968, 91210, 104240, 115967, 145936, 182420, 231934, 364840, 463868, 579835, 729680, 811769, 927736, 1159670, 1623538, 1855472, 2319340, 3247076, 4058845, 4638680, 6494152, 8117690, 9277360, 12988304, 16235380, 32470760, 64941520]

約数ペア:

[(1, 64941520), (2, 32470760), (4, 16235380), (5, 12988304), (7, 9277360), (8, 8117690), (10, 6494152), (14, 4638680), (16, 4058845), (20, 3247076), (28, 2319340), (35, 1855472), (40, 1623538), (56, 1159670), (70, 927736), (80, 811769), (89, 729680), (112, 579835), (140, 463868), (178, 364840), (280, 231934), (356, 182420), (445, 145936), (560, 115967), (623, 104240), (712, 91210), (890, 72968), (1246, 52120), (1303, 49840), (1424, 45605), (1780, 36484), (2492, 26060), (2606, 24920), (3115, 20848), (3560, 18242), (4984, 13030), (5212, 12460), (6230, 10424), (6515, 9968), (7120, 9121)]