490690840

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{19441}}^1$

素因数の和:20083

約数の個数: 32

約数和(自身を含む): 1105860960

約数和(自身を除く): 615170120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3155, 5048, 6310, 12620, 19441, 25240, 38882, 77764, 97205, 155528, 194410, 388820, 777640, 12267271, 24534542, 49069084, 61336355, 98138168, 122672710, 245345420, 490690840]

約数ペア:

[(1, 490690840), (2, 245345420), (4, 122672710), (5, 98138168), (8, 61336355), (10, 49069084), (20, 24534542), (40, 12267271), (631, 777640), (1262, 388820), (2524, 194410), (3155, 155528), (5048, 97205), (6310, 77764), (12620, 38882), (19441, 25240)]