20139959180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{399761}}^1$

素因数の和:400010

約数の個数: 48

約数和(自身を含む): 46340411040

約数和(自身を除く): 26200451860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 229, 458, 916, 1145, 2290, 2519, 4580, 5038, 10076, 12595, 25190, 50380, 399761, 799522, 1599044, 1998805, 3997610, 4397371, 7995220, 8794742, 17589484, 21986855, 43973710, 87947420, 91545269, 183090538, 366181076, 457726345, 915452690, 1006997959, 1830905380, 2013995918, 4027991836, 5034989795, 10069979590, 20139959180]

約数ペア:

[(1, 20139959180), (2, 10069979590), (4, 5034989795), (5, 4027991836), (10, 2013995918), (11, 1830905380), (20, 1006997959), (22, 915452690), (44, 457726345), (55, 366181076), (110, 183090538), (220, 91545269), (229, 87947420), (458, 43973710), (916, 21986855), (1145, 17589484), (2290, 8794742), (2519, 7995220), (4580, 4397371), (5038, 3997610), (10076, 1998805), (12595, 1599044), (25190, 799522), (50380, 399761)]