64125625

素因数分解:

$5^4\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:163

約数の個数: 40

約数和(自身を含む): 85472640

約数和(自身を除く): 21347015

約数列:

[1, 5, 25, 37, 47, 59, 125, 185, 235, 295, 625, 925, 1175, 1475, 1739, 2183, 2773, 4625, 5875, 7375, 8695, 10915, 13865, 23125, 29375, 36875, 43475, 54575, 69325, 102601, 217375, 272875, 346625, 513005, 1086875, 1364375, 1733125, 2565025, 12825125, 64125625]

約数ペア:

[(1, 64125625), (5, 12825125), (25, 2565025), (37, 1733125), (47, 1364375), (59, 1086875), (125, 513005), (185, 346625), (235, 272875), (295, 217375), (625, 102601), (925, 69325), (1175, 54575), (1475, 43475), (1739, 36875), (2183, 29375), (2773, 23125), (4625, 13865), (5875, 10915), (7375, 8695)]