81426325

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:234

約数の個数: 36

約数和(自身を含む): 108618048

約数和(自身を除く): 27191723

約数列:

[1, 5, 23, 25, 47, 115, 131, 235, 529, 575, 655, 1081, 1175, 2645, 3013, 3275, 5405, 6157, 13225, 15065, 24863, 27025, 30785, 69299, 75325, 124315, 141611, 153925, 346495, 621575, 708055, 1732475, 3257053, 3540275, 16285265, 81426325]

約数ペア:

[(1, 81426325), (5, 16285265), (23, 3540275), (25, 3257053), (47, 1732475), (115, 708055), (131, 621575), (235, 346495), (529, 153925), (575, 141611), (655, 124315), (1081, 75325), (1175, 69299), (2645, 30785), (3013, 27025), (3275, 24863), (5405, 15065), (6157, 13225)]