291240520

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{123407}}^1$

素因数の和:123477

約数の個数: 32

約数和(自身を含む): 666403200

約数和(自身を除く): 375162680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 123407, 246814, 493628, 617035, 987256, 1234070, 2468140, 4936280, 7281013, 14562026, 29124052, 36405065, 58248104, 72810130, 145620260, 291240520]

約数ペア:

[(1, 291240520), (2, 145620260), (4, 72810130), (5, 58248104), (8, 36405065), (10, 29124052), (20, 14562026), (40, 7281013), (59, 4936280), (118, 2468140), (236, 1234070), (295, 987256), (472, 617035), (590, 493628), (1180, 246814), (2360, 123407)]