1855940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1307}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 3955392

約数和(自身を除く): 2099452

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1307, 1420, 2614, 5228, 6535, 13070, 26140, 92797, 185594, 371188, 463985, 927970, 1855940]

約数ペア:

[(1, 1855940), (2, 927970), (4, 463985), (5, 371188), (10, 185594), (20, 92797), (71, 26140), (142, 13070), (284, 6535), (355, 5228), (710, 2614), (1307, 1420)]