21725060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5351}}^1$

素因数の和:5396

約数の個数: 48

約数和(自身を含む): 53948160

約数和(自身を除く): 32223100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 5351, 10702, 21404, 26755, 37457, 53510, 74914, 107020, 149828, 155179, 187285, 310358, 374570, 620716, 749140, 775895, 1086253, 1551790, 2172506, 3103580, 4345012, 5431265, 10862530, 21725060]

約数ペア:

[(1, 21725060), (2, 10862530), (4, 5431265), (5, 4345012), (7, 3103580), (10, 2172506), (14, 1551790), (20, 1086253), (28, 775895), (29, 749140), (35, 620716), (58, 374570), (70, 310358), (116, 187285), (140, 155179), (145, 149828), (203, 107020), (290, 74914), (406, 53510), (580, 37457), (812, 26755), (1015, 21404), (2030, 10702), (4060, 5351)]