18316940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11593}}^1$

素因数の和:11681

約数の個数: 24

約数和(自身を含む): 38955840

約数和(自身を除く): 20638900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11593, 23186, 46372, 57965, 115930, 231860, 915847, 1831694, 3663388, 4579235, 9158470, 18316940]

約数ペア:

[(1, 18316940), (2, 9158470), (4, 4579235), (5, 3663388), (10, 1831694), (20, 915847), (79, 231860), (158, 115930), (316, 57965), (395, 46372), (790, 23186), (1580, 11593)]