20176590580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{870431}}^1$

素因数の和:870520

約数の個数: 48

約数和(自身を含む): 45332098560

約数和(自身を除く): 25155507980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 1159, 1220, 2318, 4636, 5795, 11590, 23180, 870431, 1740862, 3481724, 4352155, 8704310, 16538189, 17408620, 33076378, 53096291, 66152756, 82690945, 106192582, 165381890, 212385164, 265481455, 330763780, 530962910, 1008829529, 1061925820, 2017659058, 4035318116, 5044147645, 10088295290, 20176590580]

約数ペア:

[(1, 20176590580), (2, 10088295290), (4, 5044147645), (5, 4035318116), (10, 2017659058), (19, 1061925820), (20, 1008829529), (38, 530962910), (61, 330763780), (76, 265481455), (95, 212385164), (122, 165381890), (190, 106192582), (244, 82690945), (305, 66152756), (380, 53096291), (610, 33076378), (1159, 17408620), (1220, 16538189), (2318, 8704310), (4636, 4352155), (5795, 3481724), (11590, 1740862), (23180, 870431)]