217042780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{1777}}^1$

素因数の和:2014

約数の個数: 48

約数和(自身を含む): 473147136

約数和(自身を除く): 256104356

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 197, 310, 394, 620, 788, 985, 1777, 1970, 3554, 3940, 6107, 7108, 8885, 12214, 17770, 24428, 30535, 35540, 55087, 61070, 110174, 122140, 220348, 275435, 350069, 550870, 700138, 1101740, 1400276, 1750345, 3500690, 7001380, 10852139, 21704278, 43408556, 54260695, 108521390, 217042780]

約数ペア:

[(1, 217042780), (2, 108521390), (4, 54260695), (5, 43408556), (10, 21704278), (20, 10852139), (31, 7001380), (62, 3500690), (124, 1750345), (155, 1400276), (197, 1101740), (310, 700138), (394, 550870), (620, 350069), (788, 275435), (985, 220348), (1777, 122140), (1970, 110174), (3554, 61070), (3940, 55087), (6107, 35540), (7108, 30535), (8885, 24428), (12214, 17770)]