51681800

素因数分解:

$2^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{3271}}^1$

素因数の和:3366

約数の個数: 48

約数和(自身を含む): 121718400

約数和(自身を除く): 70036600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 158, 200, 316, 395, 632, 790, 1580, 1975, 3160, 3271, 3950, 6542, 7900, 13084, 15800, 16355, 26168, 32710, 65420, 81775, 130840, 163550, 258409, 327100, 516818, 654200, 1033636, 1292045, 2067272, 2584090, 5168180, 6460225, 10336360, 12920450, 25840900, 51681800]

約数ペア:

[(1, 51681800), (2, 25840900), (4, 12920450), (5, 10336360), (8, 6460225), (10, 5168180), (20, 2584090), (25, 2067272), (40, 1292045), (50, 1033636), (79, 654200), (100, 516818), (158, 327100), (200, 258409), (316, 163550), (395, 130840), (632, 81775), (790, 65420), (1580, 32710), (1975, 26168), (3160, 16355), (3271, 15800), (3950, 13084), (6542, 7900)]