172995940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{665369}}^1$

素因数の和:665391

約数の個数: 24

約数和(自身を含む): 391237560

約数和(自身を除く): 218241620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 665369, 1330738, 2661476, 3326845, 6653690, 8649797, 13307380, 17299594, 34599188, 43248985, 86497970, 172995940]

約数ペア:

[(1, 172995940), (2, 86497970), (4, 43248985), (5, 34599188), (10, 17299594), (13, 13307380), (20, 8649797), (26, 6653690), (52, 3326845), (65, 2661476), (130, 1330738), (260, 665369)]