12771380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20599}}^1$

素因数の和:20639

約数の個数: 24

約数和(自身を含む): 27686400

約数和(自身を除く): 14915020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20599, 41198, 82396, 102995, 205990, 411980, 638569, 1277138, 2554276, 3192845, 6385690, 12771380]

約数ペア:

[(1, 12771380), (2, 6385690), (4, 3192845), (5, 2554276), (10, 1277138), (20, 638569), (31, 411980), (62, 205990), (124, 102995), (155, 82396), (310, 41198), (620, 20599)]