16357220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 37800000

約数和(自身を除く): 21442780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 499, 596, 745, 998, 1490, 1639, 1996, 2495, 2980, 3278, 4990, 5489, 6556, 8195, 9980, 10978, 16390, 21956, 27445, 32780, 54890, 74351, 109780, 148702, 297404, 371755, 743510, 817861, 1487020, 1635722, 3271444, 4089305, 8178610, 16357220]

約数ペア:

[(1, 16357220), (2, 8178610), (4, 4089305), (5, 3271444), (10, 1635722), (11, 1487020), (20, 817861), (22, 743510), (44, 371755), (55, 297404), (110, 148702), (149, 109780), (220, 74351), (298, 54890), (499, 32780), (596, 27445), (745, 21956), (998, 16390), (1490, 10978), (1639, 9980), (1996, 8195), (2495, 6556), (2980, 5489), (3278, 4990)]