64185920

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2539}}^1$

素因数の和:2635

約数の個数: 56

約数和(自身を含む): 154838400

約数和(自身を除く): 90652480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 2539, 3160, 5056, 5078, 6320, 10156, 12640, 12695, 20312, 25280, 25390, 40624, 50780, 81248, 101560, 162496, 200581, 203120, 401162, 406240, 802324, 812480, 1002905, 1604648, 2005810, 3209296, 4011620, 6418592, 8023240, 12837184, 16046480, 32092960, 64185920]

約数ペア:

[(1, 64185920), (2, 32092960), (4, 16046480), (5, 12837184), (8, 8023240), (10, 6418592), (16, 4011620), (20, 3209296), (32, 2005810), (40, 1604648), (64, 1002905), (79, 812480), (80, 802324), (158, 406240), (160, 401162), (316, 203120), (320, 200581), (395, 162496), (632, 101560), (790, 81248), (1264, 50780), (1580, 40624), (2528, 25390), (2539, 25280), (3160, 20312), (5056, 12695), (5078, 12640), (6320, 10156)]