99999680

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28409}}^1$

素因数の和:28437

約数の個数: 56

約数和(自身を含む): 259781040

約数和(自身を除く): 159781360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 28409, 56818, 113636, 142045, 227272, 284090, 312499, 454544, 568180, 624998, 909088, 1136360, 1249996, 1562495, 1818176, 2272720, 2499992, 3124990, 4545440, 4999984, 6249980, 9090880, 9999968, 12499960, 19999936, 24999920, 49999840, 99999680]

約数ペア:

[(1, 99999680), (2, 49999840), (4, 24999920), (5, 19999936), (8, 12499960), (10, 9999968), (11, 9090880), (16, 6249980), (20, 4999984), (22, 4545440), (32, 3124990), (40, 2499992), (44, 2272720), (55, 1818176), (64, 1562495), (80, 1249996), (88, 1136360), (110, 909088), (160, 624998), (176, 568180), (220, 454544), (320, 312499), (352, 284090), (440, 227272), (704, 142045), (880, 113636), (1760, 56818), (3520, 28409)]