908125625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4261}}^1$

素因数の和:4323

約数の個数: 40

約数和(自身を含む): 1278190848

約数和(自身を除く): 370065223

約数列:

[1, 5, 11, 25, 31, 55, 125, 155, 275, 341, 625, 775, 1375, 1705, 3875, 4261, 6875, 8525, 19375, 21305, 42625, 46871, 106525, 132091, 213125, 234355, 532625, 660455, 1171775, 1453001, 2663125, 3302275, 5858875, 7265005, 16511375, 29294375, 36325025, 82556875, 181625125, 908125625]

約数ペア:

[(1, 908125625), (5, 181625125), (11, 82556875), (25, 36325025), (31, 29294375), (55, 16511375), (125, 7265005), (155, 5858875), (275, 3302275), (341, 2663125), (625, 1453001), (775, 1171775), (1375, 660455), (1705, 532625), (3875, 234355), (4261, 213125), (6875, 132091), (8525, 106525), (19375, 46871), (21305, 42625)]