78643940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{135593}}^1$

素因数の和:135631

約数の個数: 24

約数和(自身を含む): 170848440

約数和(自身を除く): 92204500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 135593, 271186, 542372, 677965, 1355930, 2711860, 3932197, 7864394, 15728788, 19660985, 39321970, 78643940]

約数ペア:

[(1, 78643940), (2, 39321970), (4, 19660985), (5, 15728788), (10, 7864394), (20, 3932197), (29, 2711860), (58, 1355930), (116, 677965), (145, 542372), (290, 271186), (580, 135593)]