12380980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8719}}^1$

素因数の和:8799

約数の個数: 24

約数和(自身を含む): 26369280

約数和(自身を除く): 13988300

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 8719, 17438, 34876, 43595, 87190, 174380, 619049, 1238098, 2476196, 3095245, 6190490, 12380980]

約数ペア:

[(1, 12380980), (2, 6190490), (4, 3095245), (5, 2476196), (10, 1238098), (20, 619049), (71, 174380), (142, 87190), (284, 43595), (355, 34876), (710, 17438), (1420, 8719)]