1289755870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9921199}}^1$

素因数の和:9921219

約数の個数: 16

約数和(自身を含む): 2500142400

約数和(自身を除く): 1210386530

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 9921199, 19842398, 49605995, 99211990, 128975587, 257951174, 644877935, 1289755870]

約数ペア:

[(1, 1289755870), (2, 644877935), (5, 257951174), (10, 128975587), (13, 99211990), (26, 49605995), (65, 19842398), (130, 9921199)]