163378125

素因数分解:

$3^2\times 5^5\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 304871112

約数和(自身を除く): 141492987

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 125, 157, 185, 225, 333, 375, 471, 555, 625, 785, 925, 1125, 1413, 1665, 1875, 2355, 2775, 3125, 3925, 4625, 5625, 5809, 7065, 8325, 9375, 11775, 13875, 17427, 19625, 23125, 28125, 29045, 35325, 41625, 52281, 58875, 69375, 87135, 98125, 115625, 145225, 176625, 208125, 261405, 294375, 346875, 435675, 490625, 726125, 883125, 1040625, 1307025, 1471875, 2178375, 3630625, 4415625, 6535125, 10891875, 18153125, 32675625, 54459375, 163378125]

約数ペア:

[(1, 163378125), (3, 54459375), (5, 32675625), (9, 18153125), (15, 10891875), (25, 6535125), (37, 4415625), (45, 3630625), (75, 2178375), (111, 1471875), (125, 1307025), (157, 1040625), (185, 883125), (225, 726125), (333, 490625), (375, 435675), (471, 346875), (555, 294375), (625, 261405), (785, 208125), (925, 176625), (1125, 145225), (1413, 115625), (1665, 98125), (1875, 87135), (2355, 69375), (2775, 58875), (3125, 52281), (3925, 41625), (4625, 35325), (5625, 29045), (5809, 28125), (7065, 23125), (8325, 19625), (9375, 17427), (11775, 13875)]