66704920

素因数分解:

$2^3\times 5^1\times {\mathrm{1667623}}^1$

素因数の和:1667634

約数の個数: 16

約数和(自身を含む): 150086160

約数和(自身を除く): 83381240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1667623, 3335246, 6670492, 8338115, 13340984, 16676230, 33352460, 66704920]

約数ペア:

[(1, 66704920), (2, 33352460), (4, 16676230), (5, 13340984), (8, 8338115), (10, 6670492), (20, 3335246), (40, 1667623)]