85425665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 113926176

約数和(自身を除く): 28500511

約数列:

[1, 5, 13, 53, 65, 137, 181, 265, 685, 689, 905, 1781, 2353, 3445, 7261, 8905, 9593, 11765, 24797, 36305, 47965, 94393, 123985, 124709, 322361, 471965, 623545, 1314241, 1611805, 6571205, 17085133, 85425665]

約数ペア:

[(1, 85425665), (5, 17085133), (13, 6571205), (53, 1611805), (65, 1314241), (137, 623545), (181, 471965), (265, 322361), (685, 124709), (689, 123985), (905, 94393), (1781, 47965), (2353, 36305), (3445, 24797), (7261, 11765), (8905, 9593)]