2445778890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{382751}}^1$

素因数の和:382835

約数の個数: 48

約数和(自身を含む): 6448605696

約数和(自身を除く): 4002826806

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390, 382751, 765502, 1148253, 1913755, 2296506, 3444759, 3827510, 5741265, 6889518, 11482530, 17223795, 27175321, 34447590, 54350642, 81525963, 135876605, 163051926, 244577889, 271753210, 407629815, 489155778, 815259630, 1222889445, 2445778890]

約数ペア:

[(1, 2445778890), (2, 1222889445), (3, 815259630), (5, 489155778), (6, 407629815), (9, 271753210), (10, 244577889), (15, 163051926), (18, 135876605), (30, 81525963), (45, 54350642), (71, 34447590), (90, 27175321), (142, 17223795), (213, 11482530), (355, 6889518), (426, 5741265), (639, 3827510), (710, 3444759), (1065, 2296506), (1278, 1913755), (2130, 1148253), (3195, 765502), (6390, 382751)]