78649364180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2009437}}^1$

素因数の和:2009568

約数の個数: 48

約数和(自身を含む): 175544503680

約数和(自身を除く): 96895139500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 515, 1030, 1957, 2060, 3914, 7828, 9785, 19570, 39140, 2009437, 4018874, 8037748, 10047185, 20094370, 38179303, 40188740, 76358606, 152717212, 190896515, 206972011, 381793030, 413944022, 763586060, 827888044, 1034860055, 2069720110, 3932468209, 4139440220, 7864936418, 15729872836, 19662341045, 39324682090, 78649364180]

約数ペア:

[(1, 78649364180), (2, 39324682090), (4, 19662341045), (5, 15729872836), (10, 7864936418), (19, 4139440220), (20, 3932468209), (38, 2069720110), (76, 1034860055), (95, 827888044), (103, 763586060), (190, 413944022), (206, 381793030), (380, 206972011), (412, 190896515), (515, 152717212), (1030, 76358606), (1957, 40188740), (2060, 38179303), (3914, 20094370), (7828, 10047185), (9785, 8037748), (19570, 4018874), (39140, 2009437)]