220176860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{647579}}^1$

素因数の和:647605

約数の個数: 24

約数和(自身を含む): 489570480

約数和(自身を除く): 269393620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 647579, 1295158, 2590316, 3237895, 6475790, 11008843, 12951580, 22017686, 44035372, 55044215, 110088430, 220176860]

約数ペア:

[(1, 220176860), (2, 110088430), (4, 55044215), (5, 44035372), (10, 22017686), (17, 12951580), (20, 11008843), (34, 6475790), (68, 3237895), (85, 2590316), (170, 1295158), (340, 647579)]