2578498520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4958651}}^1$

素因数の和:4958675

約数の個数: 32

約数和(自身を含む): 6247901520

約数和(自身を除く): 3669403000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 4958651, 9917302, 19834604, 24793255, 39669208, 49586510, 64462463, 99173020, 128924926, 198346040, 257849852, 322312315, 515699704, 644624630, 1289249260, 2578498520]

約数ペア:

[(1, 2578498520), (2, 1289249260), (4, 644624630), (5, 515699704), (8, 322312315), (10, 257849852), (13, 198346040), (20, 128924926), (26, 99173020), (40, 64462463), (52, 49586510), (65, 39669208), (104, 24793255), (130, 19834604), (260, 9917302), (520, 4958651)]