8100040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 20205360

約数和(自身を除く): 12105320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 421, 481, 520, 740, 842, 962, 1480, 1684, 1924, 2105, 2405, 3368, 3848, 4210, 4810, 5473, 8420, 9620, 10946, 15577, 16840, 19240, 21892, 27365, 31154, 43784, 54730, 62308, 77885, 109460, 124616, 155770, 202501, 218920, 311540, 405002, 623080, 810004, 1012505, 1620008, 2025010, 4050020, 8100040]

約数ペア:

[(1, 8100040), (2, 4050020), (4, 2025010), (5, 1620008), (8, 1012505), (10, 810004), (13, 623080), (20, 405002), (26, 311540), (37, 218920), (40, 202501), (52, 155770), (65, 124616), (74, 109460), (104, 77885), (130, 62308), (148, 54730), (185, 43784), (260, 31154), (296, 27365), (370, 21892), (421, 19240), (481, 16840), (520, 15577), (740, 10946), (842, 9620), (962, 8420), (1480, 5473), (1684, 4810), (1924, 4210), (2105, 3848), (2405, 3368)]