408083405980

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1171}}^1\times {\mathrm{17477}}^1$

素因数の和:19654

約数の個数: 48

約数和(自身を含む): 858616397856

約数和(自身を除く): 450532991876

約数列:

[1, 2, 4, 5, 10, 20, 997, 1171, 1994, 2342, 3988, 4684, 4985, 5855, 9970, 11710, 17477, 19940, 23420, 34954, 69908, 87385, 174770, 349540, 1167487, 2334974, 4669948, 5837435, 11674870, 17424569, 20465567, 23349740, 34849138, 40931134, 69698276, 81862268, 87122845, 102327835, 174245690, 204655670, 348491380, 409311340, 20404170299, 40808340598, 81616681196, 102020851495, 204041702990, 408083405980]

約数ペア:

[(1, 408083405980), (2, 204041702990), (4, 102020851495), (5, 81616681196), (10, 40808340598), (20, 20404170299), (997, 409311340), (1171, 348491380), (1994, 204655670), (2342, 174245690), (3988, 102327835), (4684, 87122845), (4985, 81862268), (5855, 69698276), (9970, 40931134), (11710, 34849138), (17477, 23349740), (19940, 20465567), (23420, 17424569), (34954, 11674870), (69908, 5837435), (87385, 4669948), (174770, 2334974), (349540, 1167487)]