2018118910

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{91691}}^1$

素因数の和:91800

約数の個数: 32

約数和(自身を含む): 3802650624

約数和(自身を除く): 1784531714

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 2201, 4402, 11005, 22010, 91691, 183382, 458455, 916910, 2842421, 5684842, 6510061, 13020122, 14212105, 28424210, 32550305, 65100610, 201811891, 403623782, 1009059455, 2018118910]

約数ペア:

[(1, 2018118910), (2, 1009059455), (5, 403623782), (10, 201811891), (31, 65100610), (62, 32550305), (71, 28424210), (142, 14212105), (155, 13020122), (310, 6510061), (355, 5684842), (710, 2842421), (2201, 916910), (4402, 458455), (11005, 183382), (22010, 91691)]