7687820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{617}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 18688320

約数和(自身を除く): 11000500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 617, 623, 890, 1234, 1246, 1780, 2468, 2492, 3085, 3115, 4319, 6170, 6230, 8638, 12340, 12460, 17276, 21595, 43190, 54913, 86380, 109826, 219652, 274565, 384391, 549130, 768782, 1098260, 1537564, 1921955, 3843910, 7687820]

約数ペア:

[(1, 7687820), (2, 3843910), (4, 1921955), (5, 1537564), (7, 1098260), (10, 768782), (14, 549130), (20, 384391), (28, 274565), (35, 219652), (70, 109826), (89, 86380), (140, 54913), (178, 43190), (356, 21595), (445, 17276), (617, 12460), (623, 12340), (890, 8638), (1234, 6230), (1246, 6170), (1780, 4319), (2468, 3115), (2492, 3085)]