18967240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27893}}^1$

素因数の和:27921

約数の個数: 32

約数和(自身を含む): 45188280

約数和(自身を除く): 26221040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27893, 55786, 111572, 139465, 223144, 278930, 474181, 557860, 948362, 1115720, 1896724, 2370905, 3793448, 4741810, 9483620, 18967240]

約数ペア:

[(1, 18967240), (2, 9483620), (4, 4741810), (5, 3793448), (8, 2370905), (10, 1896724), (17, 1115720), (20, 948362), (34, 557860), (40, 474181), (68, 278930), (85, 223144), (136, 139465), (170, 111572), (340, 55786), (680, 27893)]