87666875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:297

約数の個数: 40

約数和(自身を含む): 119661696

約数和(自身を除く): 31994821

約数列:

[1, 5, 17, 25, 37, 85, 125, 185, 223, 425, 625, 629, 925, 1115, 2125, 3145, 3791, 4625, 5575, 8251, 10625, 15725, 18955, 23125, 27875, 41255, 78625, 94775, 139375, 140267, 206275, 393125, 473875, 701335, 1031375, 2369375, 3506675, 5156875, 17533375, 87666875]

約数ペア:

[(1, 87666875), (5, 17533375), (17, 5156875), (25, 3506675), (37, 2369375), (85, 1031375), (125, 701335), (185, 473875), (223, 393125), (425, 206275), (625, 140267), (629, 139375), (925, 94775), (1115, 78625), (2125, 41255), (3145, 27875), (3791, 23125), (4625, 18955), (5575, 15725), (8251, 10625)]