20880451644

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1997747}}^1$

素因数の和:1997834

約数の個数: 48

約数和(自身を含む): 53251970688

約数和(自身を除く): 32371519044

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 201, 268, 402, 804, 871, 1742, 2613, 3484, 5226, 10452, 1997747, 3995494, 5993241, 7990988, 11986482, 23972964, 25970711, 51941422, 77912133, 103882844, 133849049, 155824266, 267698098, 311648532, 401547147, 535396196, 803094294, 1606188588, 1740037637, 3480075274, 5220112911, 6960150548, 10440225822, 20880451644]

約数ペア:

[(1, 20880451644), (2, 10440225822), (3, 6960150548), (4, 5220112911), (6, 3480075274), (12, 1740037637), (13, 1606188588), (26, 803094294), (39, 535396196), (52, 401547147), (67, 311648532), (78, 267698098), (134, 155824266), (156, 133849049), (201, 103882844), (268, 77912133), (402, 51941422), (804, 25970711), (871, 23972964), (1742, 11986482), (2613, 7990988), (3484, 5993241), (5226, 3995494), (10452, 1997747)]