49999840

素因数分解:

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

素因数の和:28435

約数の個数: 48

約数和(自身を含む): 128867760

約数和(自身を除く): 78867920

約数列:

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

約数ペア:

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