78476660

素因数分解:

$2^2\times 5^1\times {\mathrm{1831}}^1\times {\mathrm{2143}}^1$

素因数の和:3983

約数の個数: 24

約数和(自身を含む): 164967936

約数和(自身を除く): 86491276

約数列:

[1, 2, 4, 5, 10, 20, 1831, 2143, 3662, 4286, 7324, 8572, 9155, 10715, 18310, 21430, 36620, 42860, 3923833, 7847666, 15695332, 19619165, 39238330, 78476660]

約数ペア:

[(1, 78476660), (2, 39238330), (4, 19619165), (5, 15695332), (10, 7847666), (20, 3923833), (1831, 42860), (2143, 36620), (3662, 21430), (4286, 18310), (7324, 10715), (8572, 9155)]