20015874560

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{710791}}^1$

素因数の和:710825

約数の個数: 80

約数和(自身を含む): 52354095552

約数和(自身を除く): 32338220992

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 880, 1280, 1408, 1760, 2560, 2816, 3520, 5632, 7040, 14080, 28160, 710791, 1421582, 2843164, 3553955, 5686328, 7107910, 7818701, 11372656, 14215820, 15637402, 22745312, 28431640, 31274804, 39093505, 45490624, 56863280, 62549608, 78187010, 90981248, 113726560, 125099216, 156374020, 181962496, 227453120, 250198432, 312748040, 363924992, 454906240, 500396864, 625496080, 909812480, 1000793728, 1250992160, 1819624960, 2001587456, 2501984320, 4003174912, 5003968640, 10007937280, 20015874560]

約数ペア:

[(1, 20015874560), (2, 10007937280), (4, 5003968640), (5, 4003174912), (8, 2501984320), (10, 2001587456), (11, 1819624960), (16, 1250992160), (20, 1000793728), (22, 909812480), (32, 625496080), (40, 500396864), (44, 454906240), (55, 363924992), (64, 312748040), (80, 250198432), (88, 227453120), (110, 181962496), (128, 156374020), (160, 125099216), (176, 113726560), (220, 90981248), (256, 78187010), (320, 62549608), (352, 56863280), (440, 45490624), (512, 39093505), (640, 31274804), (704, 28431640), (880, 22745312), (1280, 15637402), (1408, 14215820), (1760, 11372656), (2560, 7818701), (2816, 7107910), (3520, 5686328), (5632, 3553955), (7040, 2843164), (14080, 1421582), (28160, 710791)]