20218584710

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2103911}}^1$

素因数の和:2103980

約数の個数: 24

約数和(自身を含む): 37605323088

約数和(自身を除く): 17386738378

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 4805, 9610, 2103911, 4207822, 10519555, 21039110, 65221241, 130442482, 326106205, 652212410, 2021858471, 4043716942, 10109292355, 20218584710]

約数ペア:

[(1, 20218584710), (2, 10109292355), (5, 4043716942), (10, 2021858471), (31, 652212410), (62, 326106205), (155, 130442482), (310, 65221241), (961, 21039110), (1922, 10519555), (4805, 4207822), (9610, 2103911)]