79852580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 171506160

約数和(自身を除く): 91653580

約数列:

[1, 2, 4, 5, 10, 20, 89, 113, 178, 226, 356, 397, 445, 452, 565, 794, 890, 1130, 1588, 1780, 1985, 2260, 3970, 7940, 10057, 20114, 35333, 40228, 44861, 50285, 70666, 89722, 100570, 141332, 176665, 179444, 201140, 224305, 353330, 448610, 706660, 897220, 3992629, 7985258, 15970516, 19963145, 39926290, 79852580]

約数ペア:

[(1, 79852580), (2, 39926290), (4, 19963145), (5, 15970516), (10, 7985258), (20, 3992629), (89, 897220), (113, 706660), (178, 448610), (226, 353330), (356, 224305), (397, 201140), (445, 179444), (452, 176665), (565, 141332), (794, 100570), (890, 89722), (1130, 70666), (1588, 50285), (1780, 44861), (1985, 40228), (2260, 35333), (3970, 20114), (7940, 10057)]