18306280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26921}}^1$

素因数の和:26949

約数の個数: 32

約数和(自身を含む): 43613640

約数和(自身を除く): 25307360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 26921, 53842, 107684, 134605, 215368, 269210, 457657, 538420, 915314, 1076840, 1830628, 2288285, 3661256, 4576570, 9153140, 18306280]

約数ペア:

[(1, 18306280), (2, 9153140), (4, 4576570), (5, 3661256), (8, 2288285), (10, 1830628), (17, 1076840), (20, 915314), (34, 538420), (40, 457657), (68, 269210), (85, 215368), (136, 134605), (170, 107684), (340, 53842), (680, 26921)]