685972816

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{3331}}^1$

素因数の和:3611

約数の個数: 40

約数和(自身を含む): 1357670048

約数和(自身を除く): 671697232

約数列:

[1, 2, 4, 8, 16, 61, 122, 211, 244, 422, 488, 844, 976, 1688, 3331, 3376, 6662, 12871, 13324, 25742, 26648, 51484, 53296, 102968, 203191, 205936, 406382, 702841, 812764, 1405682, 1625528, 2811364, 3251056, 5622728, 11245456, 42873301, 85746602, 171493204, 342986408, 685972816]

約数ペア:

[(1, 685972816), (2, 342986408), (4, 171493204), (8, 85746602), (16, 42873301), (61, 11245456), (122, 5622728), (211, 3251056), (244, 2811364), (422, 1625528), (488, 1405682), (844, 812764), (976, 702841), (1688, 406382), (3331, 205936), (3376, 203191), (6662, 102968), (12871, 53296), (13324, 51484), (25742, 26648)]