1293836065

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{21247}}^1$

素因数の和:21912

約数の個数: 16

約数和(自身を含む): 1636945920

約数和(自身を除く): 343109855

約数列:

[1, 5, 19, 95, 641, 3205, 12179, 21247, 60895, 106235, 403693, 2018465, 13619327, 68096635, 258767213, 1293836065]

約数ペア:

[(1, 1293836065), (5, 258767213), (19, 68096635), (95, 13619327), (641, 2018465), (3205, 403693), (12179, 106235), (21247, 60895)]