20671430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8369}}^1$

素因数の和:8408

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 21513370

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8369, 16738, 41845, 83690, 108797, 159011, 217594, 318022, 543985, 795055, 1087970, 1590110, 2067143, 4134286, 10335715, 20671430]

約数ペア:

[(1, 20671430), (2, 10335715), (5, 4134286), (10, 2067143), (13, 1590110), (19, 1087970), (26, 795055), (38, 543985), (65, 318022), (95, 217594), (130, 159011), (190, 108797), (247, 83690), (494, 41845), (1235, 16738), (2470, 8369)]