1989290015

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1\times {\mathrm{20639}}^1$

素因数の和:21202

約数の個数: 16

約数和(自身を含む): 2456490240

約数和(自身を除く): 467200225

約数列:

[1, 5, 37, 185, 521, 2605, 19277, 20639, 96385, 103195, 763643, 3818215, 10752919, 53764595, 397858003, 1989290015]

約数ペア:

[(1, 1989290015), (5, 397858003), (37, 53764595), (185, 10752919), (521, 3818215), (2605, 763643), (19277, 103195), (20639, 96385)]