155666680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{299359}}^1$

素因数の和:299383

約数の個数: 32

約数和(自身を含む): 377193600

約数和(自身を除く): 221526920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 299359, 598718, 1197436, 1496795, 2394872, 2993590, 3891667, 5987180, 7783334, 11974360, 15566668, 19458335, 31133336, 38916670, 77833340, 155666680]

約数ペア:

[(1, 155666680), (2, 77833340), (4, 38916670), (5, 31133336), (8, 19458335), (10, 15566668), (13, 11974360), (20, 7783334), (26, 5987180), (40, 3891667), (52, 2993590), (65, 2394872), (104, 1496795), (130, 1197436), (260, 598718), (520, 299359)]