42172520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81101}}^1$

素因数の和:81125

約数の個数: 32

約数和(自身を含む): 102188520

約数和(自身を除く): 60016000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 81101, 162202, 324404, 405505, 648808, 811010, 1054313, 1622020, 2108626, 3244040, 4217252, 5271565, 8434504, 10543130, 21086260, 42172520]

約数ペア:

[(1, 42172520), (2, 21086260), (4, 10543130), (5, 8434504), (8, 5271565), (10, 4217252), (13, 3244040), (20, 2108626), (26, 1622020), (40, 1054313), (52, 811010), (65, 648808), (104, 405505), (130, 324404), (260, 162202), (520, 81101)]