1271796080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{512821}}^1$

素因数の和:512865

約数の個数: 40

約数和(自身を含む): 3052316544

約数和(自身を除く): 1780520464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 512821, 1025642, 2051284, 2564105, 4102568, 5128210, 8205136, 10256420, 15897451, 20512840, 31794902, 41025680, 63589804, 79487255, 127179608, 158974510, 254359216, 317949020, 635898040, 1271796080]

約数ペア:

[(1, 1271796080), (2, 635898040), (4, 317949020), (5, 254359216), (8, 158974510), (10, 127179608), (16, 79487255), (20, 63589804), (31, 41025680), (40, 31794902), (62, 20512840), (80, 15897451), (124, 10256420), (155, 8205136), (248, 5128210), (310, 4102568), (496, 2564105), (620, 2051284), (1240, 1025642), (2480, 512821)]