64400968840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{123848017}}^1$

素因数の和:123848041

約数の個数: 32

約数和(自身を含む): 156048502680

約数和(自身を除く): 91647533840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 123848017, 247696034, 495392068, 619240085, 990784136, 1238480170, 1610024221, 2476960340, 3220048442, 4953920680, 6440096884, 8050121105, 12880193768, 16100242210, 32200484420, 64400968840]

約数ペア:

[(1, 64400968840), (2, 32200484420), (4, 16100242210), (5, 12880193768), (8, 8050121105), (10, 6440096884), (13, 4953920680), (20, 3220048442), (26, 2476960340), (40, 1610024221), (52, 1238480170), (65, 990784136), (104, 619240085), (130, 495392068), (260, 247696034), (520, 123848017)]