30751280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{617}}^1$

素因数の和:726

約数の個数: 80

約数和(自身を含む): 82762560

約数和(自身を除く): 52011280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 617, 623, 712, 890, 1234, 1246, 1424, 1780, 2468, 2492, 3085, 3115, 3560, 4319, 4936, 4984, 6170, 6230, 7120, 8638, 9872, 9968, 12340, 12460, 17276, 21595, 24680, 24920, 34552, 43190, 49360, 49840, 54913, 69104, 86380, 109826, 172760, 219652, 274565, 345520, 384391, 439304, 549130, 768782, 878608, 1098260, 1537564, 1921955, 2196520, 3075128, 3843910, 4393040, 6150256, 7687820, 15375640, 30751280]

約数ペア:

[(1, 30751280), (2, 15375640), (4, 7687820), (5, 6150256), (7, 4393040), (8, 3843910), (10, 3075128), (14, 2196520), (16, 1921955), (20, 1537564), (28, 1098260), (35, 878608), (40, 768782), (56, 549130), (70, 439304), (80, 384391), (89, 345520), (112, 274565), (140, 219652), (178, 172760), (280, 109826), (356, 86380), (445, 69104), (560, 54913), (617, 49840), (623, 49360), (712, 43190), (890, 34552), (1234, 24920), (1246, 24680), (1424, 21595), (1780, 17276), (2468, 12460), (2492, 12340), (3085, 9968), (3115, 9872), (3560, 8638), (4319, 7120), (4936, 6230), (4984, 6170)]