64654375

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:169

約数の個数: 40

約数和(自身を含む): 86372352

約数和(自身を除く): 21717977

約数列:

[1, 5, 25, 31, 47, 71, 125, 155, 235, 355, 625, 775, 1175, 1457, 1775, 2201, 3337, 3875, 5875, 7285, 8875, 11005, 16685, 19375, 29375, 36425, 44375, 55025, 83425, 103447, 182125, 275125, 417125, 517235, 910625, 1375625, 2085625, 2586175, 12930875, 64654375]

約数ペア:

[(1, 64654375), (5, 12930875), (25, 2586175), (31, 2085625), (47, 1375625), (71, 910625), (125, 517235), (155, 417125), (235, 275125), (355, 182125), (625, 103447), (775, 83425), (1175, 55025), (1457, 44375), (1775, 36425), (2201, 29375), (3337, 19375), (3875, 16685), (5875, 11005), (7285, 8875)]