19090120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2351}}^1$

素因数の和:2398

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 31713080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 2351, 4060, 4702, 8120, 9404, 11755, 16457, 18808, 23510, 32914, 47020, 65828, 68179, 82285, 94040, 131656, 136358, 164570, 272716, 329140, 340895, 477253, 545432, 658280, 681790, 954506, 1363580, 1909012, 2386265, 2727160, 3818024, 4772530, 9545060, 19090120]

約数ペア:

[(1, 19090120), (2, 9545060), (4, 4772530), (5, 3818024), (7, 2727160), (8, 2386265), (10, 1909012), (14, 1363580), (20, 954506), (28, 681790), (29, 658280), (35, 545432), (40, 477253), (56, 340895), (58, 329140), (70, 272716), (116, 164570), (140, 136358), (145, 131656), (203, 94040), (232, 82285), (280, 68179), (290, 65828), (406, 47020), (580, 32914), (812, 23510), (1015, 18808), (1160, 16457), (1624, 11755), (2030, 9404), (2351, 8120), (4060, 4702)]