1218156945

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1980743}}^1$

素因数の和:1980792

約数の個数: 16

約数和(自身を含む): 1996589952

約数和(自身を除く): 778433007

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 1980743, 5942229, 9903715, 29711145, 81210463, 243631389, 406052315, 1218156945]

約数ペア:

[(1, 1218156945), (3, 406052315), (5, 243631389), (15, 81210463), (41, 29711145), (123, 9903715), (205, 5942229), (615, 1980743)]