20212790980

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{421}}^1\times {\mathrm{13411}}^1$

素因数の和:14020

約数の個数: 48

約数和(自身を含む): 42788571840

約数和(自身を除く): 22575780860

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 421, 716, 842, 895, 1684, 1790, 2105, 3580, 4210, 8420, 13411, 26822, 53644, 67055, 75359, 134110, 150718, 268220, 301436, 376795, 753590, 1507180, 2400569, 4801138, 5646031, 9602276, 11292062, 12002845, 22584124, 24005690, 28230155, 48011380, 56460310, 112920620, 1010639549, 2021279098, 4042558196, 5053197745, 10106395490, 20212790980]

約数ペア:

[(1, 20212790980), (2, 10106395490), (4, 5053197745), (5, 4042558196), (10, 2021279098), (20, 1010639549), (179, 112920620), (358, 56460310), (421, 48011380), (716, 28230155), (842, 24005690), (895, 22584124), (1684, 12002845), (1790, 11292062), (2105, 9602276), (3580, 5646031), (4210, 4801138), (8420, 2400569), (13411, 1507180), (26822, 753590), (53644, 376795), (67055, 301436), (75359, 268220), (134110, 150718)]