28357030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218131}}^1$

素因数の和:218151

約数の個数: 16

約数和(自身を含む): 54969264

約数和(自身を除く): 26612234

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 218131, 436262, 1090655, 2181310, 2835703, 5671406, 14178515, 28357030]

約数ペア:

[(1, 28357030), (2, 14178515), (5, 5671406), (10, 2835703), (13, 2181310), (26, 1090655), (65, 436262), (130, 218131)]