18310900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2579}}^1$

素因数の和:2664

約数の個数: 36

約数和(自身を含む): 40309920

約数和(自身を除く): 21999020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 2579, 3550, 5158, 7100, 10316, 12895, 25790, 51580, 64475, 128950, 183109, 257900, 366218, 732436, 915545, 1831090, 3662180, 4577725, 9155450, 18310900]

約数ペア:

[(1, 18310900), (2, 9155450), (4, 4577725), (5, 3662180), (10, 1831090), (20, 915545), (25, 732436), (50, 366218), (71, 257900), (100, 183109), (142, 128950), (284, 64475), (355, 51580), (710, 25790), (1420, 12895), (1775, 10316), (2579, 7100), (3550, 5158)]