80500180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{827}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 175827456

約数和(自身を除く): 95327276

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 310, 314, 620, 628, 785, 827, 1570, 1654, 3140, 3308, 4135, 4867, 8270, 9734, 16540, 19468, 24335, 25637, 48670, 51274, 97340, 102548, 128185, 129839, 256370, 259678, 512740, 519356, 649195, 1298390, 2596780, 4025009, 8050018, 16100036, 20125045, 40250090, 80500180]

約数ペア:

[(1, 80500180), (2, 40250090), (4, 20125045), (5, 16100036), (10, 8050018), (20, 4025009), (31, 2596780), (62, 1298390), (124, 649195), (155, 519356), (157, 512740), (310, 259678), (314, 256370), (620, 129839), (628, 128185), (785, 102548), (827, 97340), (1570, 51274), (1654, 48670), (3140, 25637), (3308, 24335), (4135, 19468), (4867, 16540), (8270, 9734)]