155225680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{62591}}^1$

素因数の和:62635

約数の個数: 40

約数和(自身を含む): 372547584

約数和(自身を除く): 217321904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 62591, 125182, 250364, 312955, 500728, 625910, 1001456, 1251820, 1940321, 2503640, 3880642, 5007280, 7761284, 9701605, 15522568, 19403210, 31045136, 38806420, 77612840, 155225680]

約数ペア:

[(1, 155225680), (2, 77612840), (4, 38806420), (5, 31045136), (8, 19403210), (10, 15522568), (16, 9701605), (20, 7761284), (31, 5007280), (40, 3880642), (62, 2503640), (80, 1940321), (124, 1251820), (155, 1001456), (248, 625910), (310, 500728), (496, 312955), (620, 250364), (1240, 125182), (2480, 62591)]