40669990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{51481}}^1$

素因数の和:51567

約数の個数: 16

約数和(自身を含む): 74134080

約数和(自身を除く): 33464090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 51481, 102962, 257405, 514810, 4066999, 8133998, 20334995, 40669990]

約数ペア:

[(1, 40669990), (2, 20334995), (5, 8133998), (10, 4066999), (79, 514810), (158, 257405), (395, 102962), (790, 51481)]