219871340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{845659}}^1$

素因数の和:845681

約数の個数: 24

約数和(自身を含む): 497248080

約数和(自身を除く): 277376740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 845659, 1691318, 3382636, 4228295, 8456590, 10993567, 16913180, 21987134, 43974268, 54967835, 109935670, 219871340]

約数ペア:

[(1, 219871340), (2, 109935670), (4, 54967835), (5, 43974268), (10, 21987134), (13, 16913180), (20, 10993567), (26, 8456590), (52, 4228295), (65, 3382636), (130, 1691318), (260, 845659)]