18070750

素因数分解:

$2^1\times 5^3\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 35480016

約数和(自身を除く): 17409266

約数列:

[1, 2, 5, 10, 25, 41, 43, 50, 82, 86, 125, 205, 215, 250, 410, 430, 1025, 1075, 1681, 1763, 2050, 2150, 3362, 3526, 5125, 5375, 8405, 8815, 10250, 10750, 16810, 17630, 42025, 44075, 72283, 84050, 88150, 144566, 210125, 220375, 361415, 420250, 440750, 722830, 1807075, 3614150, 9035375, 18070750]

約数ペア:

[(1, 18070750), (2, 9035375), (5, 3614150), (10, 1807075), (25, 722830), (41, 440750), (43, 420250), (50, 361415), (82, 220375), (86, 210125), (125, 144566), (205, 88150), (215, 84050), (250, 72283), (410, 44075), (430, 42025), (1025, 17630), (1075, 16810), (1681, 10750), (1763, 10250), (2050, 8815), (2150, 8405), (3362, 5375), (3526, 5125)]