81389625

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^2\times {\mathrm{751}}^1$

素因数の和:803

約数の個数: 48

約数和(自身を含む): 144059136

約数和(自身を除く): 62669511

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 289, 375, 425, 751, 867, 1275, 1445, 2125, 2253, 3755, 4335, 6375, 7225, 11265, 12767, 18775, 21675, 36125, 38301, 56325, 63835, 93875, 108375, 191505, 217039, 281625, 319175, 651117, 957525, 1085195, 1595875, 3255585, 4787625, 5425975, 16277925, 27129875, 81389625]

約数ペア:

[(1, 81389625), (3, 27129875), (5, 16277925), (15, 5425975), (17, 4787625), (25, 3255585), (51, 1595875), (75, 1085195), (85, 957525), (125, 651117), (255, 319175), (289, 281625), (375, 217039), (425, 191505), (751, 108375), (867, 93875), (1275, 63835), (1445, 56325), (2125, 38301), (2253, 36125), (3755, 21675), (4335, 18775), (6375, 12767), (7225, 11265)]