86912500

素因数分解:

$2^2\times 5^5\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 201783960

約数和(自身を除く): 114871460

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 409, 425, 500, 625, 818, 850, 1250, 1636, 1700, 2045, 2125, 2500, 3125, 4090, 4250, 6250, 6953, 8180, 8500, 10225, 10625, 12500, 13906, 20450, 21250, 27812, 34765, 40900, 42500, 51125, 53125, 69530, 102250, 106250, 139060, 173825, 204500, 212500, 255625, 347650, 511250, 695300, 869125, 1022500, 1278125, 1738250, 2556250, 3476500, 4345625, 5112500, 8691250, 17382500, 21728125, 43456250, 86912500]

約数ペア:

[(1, 86912500), (2, 43456250), (4, 21728125), (5, 17382500), (10, 8691250), (17, 5112500), (20, 4345625), (25, 3476500), (34, 2556250), (50, 1738250), (68, 1278125), (85, 1022500), (100, 869125), (125, 695300), (170, 511250), (250, 347650), (340, 255625), (409, 212500), (425, 204500), (500, 173825), (625, 139060), (818, 106250), (850, 102250), (1250, 69530), (1636, 53125), (1700, 51125), (2045, 42500), (2125, 40900), (2500, 34765), (3125, 27812), (4090, 21250), (4250, 20450), (6250, 13906), (6953, 12500), (8180, 10625), (8500, 10225)]