65841875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:249

約数の個数: 40

約数和(自身を含む): 91808112

約数和(自身を除く): 25966237

約数列:

[1, 5, 11, 25, 55, 61, 125, 157, 275, 305, 625, 671, 785, 1375, 1525, 1727, 3355, 3925, 6875, 7625, 8635, 9577, 16775, 19625, 38125, 43175, 47885, 83875, 98125, 105347, 215875, 239425, 419375, 526735, 1079375, 1197125, 2633675, 5985625, 13168375, 65841875]

約数ペア:

[(1, 65841875), (5, 13168375), (11, 5985625), (25, 2633675), (55, 1197125), (61, 1079375), (125, 526735), (157, 419375), (275, 239425), (305, 215875), (625, 105347), (671, 98125), (785, 83875), (1375, 47885), (1525, 43175), (1727, 38125), (3355, 19625), (3925, 16775), (6875, 9577), (7625, 8635)]