12543220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20231}}^1$

素因数の和:20271

約数の個数: 24

約数和(自身を含む): 27191808

約数和(自身を除く): 14648588

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20231, 40462, 80924, 101155, 202310, 404620, 627161, 1254322, 2508644, 3135805, 6271610, 12543220]

約数ペア:

[(1, 12543220), (2, 6271610), (4, 3135805), (5, 2508644), (10, 1254322), (20, 627161), (31, 404620), (62, 202310), (124, 101155), (155, 80924), (310, 40462), (620, 20231)]