266657620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1\times {\mathrm{997}}^1$

素因数の和:1360

約数の個数: 48

約数和(自身を含む): 575422848

約数和(自身を除く): 308765228

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 311, 430, 622, 860, 997, 1244, 1555, 1994, 3110, 3988, 4985, 6220, 9970, 13373, 19940, 26746, 42871, 53492, 66865, 85742, 133730, 171484, 214355, 267460, 310067, 428710, 620134, 857420, 1240268, 1550335, 3100670, 6201340, 13332881, 26665762, 53331524, 66664405, 133328810, 266657620]

約数ペア:

[(1, 266657620), (2, 133328810), (4, 66664405), (5, 53331524), (10, 26665762), (20, 13332881), (43, 6201340), (86, 3100670), (172, 1550335), (215, 1240268), (311, 857420), (430, 620134), (622, 428710), (860, 310067), (997, 267460), (1244, 214355), (1555, 171484), (1994, 133730), (3110, 85742), (3988, 66865), (4985, 53492), (6220, 42871), (9970, 26746), (13373, 19940)]