20131147280

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1920911}}^1$

素因数の和:1921055

約数の個数: 40

約数和(自身を含む): 47162231424

約数和(自身を除く): 27031084144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 1920911, 3841822, 7683644, 9604555, 15367288, 19209110, 30734576, 38418220, 76836440, 153672880, 251639341, 503278682, 1006557364, 1258196705, 2013114728, 2516393410, 4026229456, 5032786820, 10065573640, 20131147280]

約数ペア:

[(1, 20131147280), (2, 10065573640), (4, 5032786820), (5, 4026229456), (8, 2516393410), (10, 2013114728), (16, 1258196705), (20, 1006557364), (40, 503278682), (80, 251639341), (131, 153672880), (262, 76836440), (524, 38418220), (655, 30734576), (1048, 19209110), (1310, 15367288), (2096, 9604555), (2620, 7683644), (5240, 3841822), (10480, 1920911)]