18300156920

素因数分解:

$2^3\times 5^1\times {\mathrm{3881}}^1\times {\mathrm{117883}}^1$

素因数の和:121775

約数の個数: 32

約数和(自身を含む): 41186311920

約数和(自身を除く): 22886155000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3881, 7762, 15524, 19405, 31048, 38810, 77620, 117883, 155240, 235766, 471532, 589415, 943064, 1178830, 2357660, 4715320, 457503923, 915007846, 1830015692, 2287519615, 3660031384, 4575039230, 9150078460, 18300156920]

約数ペア:

[(1, 18300156920), (2, 9150078460), (4, 4575039230), (5, 3660031384), (8, 2287519615), (10, 1830015692), (20, 915007846), (40, 457503923), (3881, 4715320), (7762, 2357660), (15524, 1178830), (19405, 943064), (31048, 589415), (38810, 471532), (77620, 235766), (117883, 155240)]