31945940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122869}}^1$

素因数の和:122891

約数の個数: 24

約数和(自身を含む): 72247560

約数和(自身を除く): 40301620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122869, 245738, 491476, 614345, 1228690, 1597297, 2457380, 3194594, 6389188, 7986485, 15972970, 31945940]

約数ペア:

[(1, 31945940), (2, 15972970), (4, 7986485), (5, 6389188), (10, 3194594), (13, 2457380), (20, 1597297), (26, 1228690), (52, 614345), (65, 491476), (130, 245738), (260, 122869)]