15779620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{821}}^1$

素因数の和:892

約数の個数: 36

約数和(自身を含む): 34282332

約数和(自身を除く): 18502712

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 821, 961, 1642, 1922, 3284, 3844, 4105, 4805, 8210, 9610, 16420, 19220, 25451, 50902, 101804, 127255, 254510, 509020, 788981, 1577962, 3155924, 3944905, 7889810, 15779620]

約数ペア:

[(1, 15779620), (2, 7889810), (4, 3944905), (5, 3155924), (10, 1577962), (20, 788981), (31, 509020), (62, 254510), (124, 127255), (155, 101804), (310, 50902), (620, 25451), (821, 19220), (961, 16420), (1642, 9610), (1922, 8210), (3284, 4805), (3844, 4105)]