12540375

素因数分解:

$3^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:249

約数の個数: 48

約数和(自身を含む): 23070528

約数和(自身を除く): 10530153

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 125, 157, 213, 225, 355, 375, 471, 639, 785, 1065, 1125, 1413, 1775, 2355, 3195, 3925, 5325, 7065, 8875, 11147, 11775, 15975, 19625, 26625, 33441, 35325, 55735, 58875, 79875, 100323, 167205, 176625, 278675, 501615, 836025, 1393375, 2508075, 4180125, 12540375]

約数ペア:

[(1, 12540375), (3, 4180125), (5, 2508075), (9, 1393375), (15, 836025), (25, 501615), (45, 278675), (71, 176625), (75, 167205), (125, 100323), (157, 79875), (213, 58875), (225, 55735), (355, 35325), (375, 33441), (471, 26625), (639, 19625), (785, 15975), (1065, 11775), (1125, 11147), (1413, 8875), (1775, 7065), (2355, 5325), (3195, 3925)]