1636321820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{18523}}^1$

素因数の和:19170

約数の個数: 48

約数和(自身を含む): 3933608448

約数和(自身を除く): 2297286628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 631, 1262, 2524, 3155, 4417, 6310, 8834, 12620, 17668, 18523, 22085, 37046, 44170, 74092, 88340, 92615, 129661, 185230, 259322, 370460, 518644, 648305, 1296610, 2593220, 11688013, 23376026, 46752052, 58440065, 81816091, 116880130, 163632182, 233760260, 327264364, 409080455, 818160910, 1636321820]

約数ペア:

[(1, 1636321820), (2, 818160910), (4, 409080455), (5, 327264364), (7, 233760260), (10, 163632182), (14, 116880130), (20, 81816091), (28, 58440065), (35, 46752052), (70, 23376026), (140, 11688013), (631, 2593220), (1262, 1296610), (2524, 648305), (3155, 518644), (4417, 370460), (6310, 259322), (8834, 185230), (12620, 129661), (17668, 92615), (18523, 88340), (22085, 74092), (37046, 44170)]