1391890565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{136393}}^1$

素因数の和:136568

約数の個数: 16

約数和(自身を含む): 1810221168

約数和(自身を除く): 418330603

約数列:

[1, 5, 13, 65, 157, 785, 2041, 10205, 136393, 681965, 1773109, 8865545, 21413701, 107068505, 278378113, 1391890565]

約数ペア:

[(1, 1391890565), (5, 278378113), (13, 107068505), (65, 21413701), (157, 8865545), (785, 1773109), (2041, 681965), (10205, 136393)]