1640720450

素因数分解:

$2^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{290393}}^1$

素因数の和:290518

約数の個数: 24

約数和(自身を含む): 3078757188

約数和(自身を除く): 1438036738

約数列:

[1, 2, 5, 10, 25, 50, 113, 226, 565, 1130, 2825, 5650, 290393, 580786, 1451965, 2903930, 7259825, 14519650, 32814409, 65628818, 164072045, 328144090, 820360225, 1640720450]

約数ペア:

[(1, 1640720450), (2, 820360225), (5, 328144090), (10, 164072045), (25, 65628818), (50, 32814409), (113, 14519650), (226, 7259825), (565, 2903930), (1130, 1451965), (2825, 580786), (5650, 290393)]