1285284940

素因数分解:

$2^2\times 5^1\times {\mathrm{4621}}^1\times {\mathrm{13907}}^1$

素因数の和:18537

約数の個数: 24

約数和(自身を含む): 2699876592

約数和(自身を除く): 1414591652

約数列:

[1, 2, 4, 5, 10, 20, 4621, 9242, 13907, 18484, 23105, 27814, 46210, 55628, 69535, 92420, 139070, 278140, 64264247, 128528494, 257056988, 321321235, 642642470, 1285284940]

約数ペア:

[(1, 1285284940), (2, 642642470), (4, 321321235), (5, 257056988), (10, 128528494), (20, 64264247), (4621, 278140), (9242, 139070), (13907, 92420), (18484, 69535), (23105, 55628), (27814, 46210)]