18959620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{337}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 41736240

約数和(自身を除く): 22776620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 116, 145, 194, 290, 337, 388, 485, 580, 674, 970, 1348, 1685, 1940, 2813, 3370, 5626, 6740, 9773, 11252, 14065, 19546, 28130, 32689, 39092, 48865, 56260, 65378, 97730, 130756, 163445, 195460, 326890, 653780, 947981, 1895962, 3791924, 4739905, 9479810, 18959620]

約数ペア:

[(1, 18959620), (2, 9479810), (4, 4739905), (5, 3791924), (10, 1895962), (20, 947981), (29, 653780), (58, 326890), (97, 195460), (116, 163445), (145, 130756), (194, 97730), (290, 65378), (337, 56260), (388, 48865), (485, 39092), (580, 32689), (674, 28130), (970, 19546), (1348, 14065), (1685, 11252), (1940, 9773), (2813, 6740), (3370, 5626)]