18691377980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{224171}}^1$

素因数の和:224570

約数の個数: 48

約数和(自身を含む): 42933421440

約数和(自身を除く): 24242043460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 379, 758, 1516, 1895, 3790, 4169, 7580, 8338, 16676, 20845, 41690, 83380, 224171, 448342, 896684, 1120855, 2241710, 2465881, 4483420, 4931762, 9863524, 12329405, 24658810, 49317620, 84960809, 169921618, 339843236, 424804045, 849608090, 934568899, 1699216180, 1869137798, 3738275596, 4672844495, 9345688990, 18691377980]

約数ペア:

[(1, 18691377980), (2, 9345688990), (4, 4672844495), (5, 3738275596), (10, 1869137798), (11, 1699216180), (20, 934568899), (22, 849608090), (44, 424804045), (55, 339843236), (110, 169921618), (220, 84960809), (379, 49317620), (758, 24658810), (1516, 12329405), (1895, 9863524), (3790, 4931762), (4169, 4483420), (7580, 2465881), (8338, 2241710), (16676, 1120855), (20845, 896684), (41690, 448342), (83380, 224171)]