87426760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53309}}^1$

素因数の和:53361

約数の個数: 32

約数和(自身を含む): 201511800

約数和(自身を除く): 114085040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 53309, 106618, 213236, 266545, 426472, 533090, 1066180, 2132360, 2185669, 4371338, 8742676, 10928345, 17485352, 21856690, 43713380, 87426760]

約数ペア:

[(1, 87426760), (2, 43713380), (4, 21856690), (5, 17485352), (8, 10928345), (10, 8742676), (20, 4371338), (40, 2185669), (41, 2132360), (82, 1066180), (164, 533090), (205, 426472), (328, 266545), (410, 213236), (820, 106618), (1640, 53309)]