19400156920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11279161}}^1$

素因数の和:11279215

約数の個数: 32

約数和(自身を含む): 44665481520

約数和(自身を除く): 25265324600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11279161, 22558322, 45116644, 56395805, 90233288, 112791610, 225583220, 451166440, 485003923, 970007846, 1940015692, 2425019615, 3880031384, 4850039230, 9700078460, 19400156920]

約数ペア:

[(1, 19400156920), (2, 9700078460), (4, 4850039230), (5, 3880031384), (8, 2425019615), (10, 1940015692), (20, 970007846), (40, 485003923), (43, 451166440), (86, 225583220), (172, 112791610), (215, 90233288), (344, 56395805), (430, 45116644), (860, 22558322), (1720, 11279161)]