20371127420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1993261}}^1$

素因数の和:1993350

約数の個数: 48

約数和(自身を含む): 49560466368

約数和(自身を除く): 29189338948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 10220, 1993261, 3986522, 7973044, 9966305, 13952827, 19932610, 27905654, 39865220, 55811308, 69764135, 139528270, 145508053, 279056540, 291016106, 582032212, 727540265, 1018556371, 1455080530, 2037112742, 2910161060, 4074225484, 5092781855, 10185563710, 20371127420]

約数ペア:

[(1, 20371127420), (2, 10185563710), (4, 5092781855), (5, 4074225484), (7, 2910161060), (10, 2037112742), (14, 1455080530), (20, 1018556371), (28, 727540265), (35, 582032212), (70, 291016106), (73, 279056540), (140, 145508053), (146, 139528270), (292, 69764135), (365, 55811308), (511, 39865220), (730, 27905654), (1022, 19932610), (1460, 13952827), (2044, 9966305), (2555, 7973044), (5110, 3986522), (10220, 1993261)]