12491140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20147}}^1$

素因数の和:20187

約数の個数: 24

約数和(自身を含む): 27078912

約数和(自身を除く): 14587772

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20147, 40294, 80588, 100735, 201470, 402940, 624557, 1249114, 2498228, 3122785, 6245570, 12491140]

約数ペア:

[(1, 12491140), (2, 6245570), (4, 3122785), (5, 2498228), (10, 1249114), (20, 624557), (31, 402940), (62, 201470), (124, 100735), (155, 80588), (310, 40294), (620, 20147)]