20188360

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3631}}^1$

素因数の和:3781

約数の個数: 32

約数和(自身を含む): 45763200

約数和(自身を除く): 25574840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3631, 5560, 7262, 14524, 18155, 29048, 36310, 72620, 145240, 504709, 1009418, 2018836, 2523545, 4037672, 5047090, 10094180, 20188360]

約数ペア:

[(1, 20188360), (2, 10094180), (4, 5047090), (5, 4037672), (8, 2523545), (10, 2018836), (20, 1009418), (40, 504709), (139, 145240), (278, 72620), (556, 36310), (695, 29048), (1112, 18155), (1390, 14524), (2780, 7262), (3631, 5560)]