64774960

素因数分解:

$2^4\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1423}}^1$

素因数の和:2005

約数の個数: 40

約数和(自身を含む): 150972480

約数和(自身を除く): 86197520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 569, 1138, 1423, 2276, 2845, 2846, 4552, 5690, 5692, 7115, 9104, 11380, 11384, 14230, 22760, 22768, 28460, 45520, 56920, 113840, 809687, 1619374, 3238748, 4048435, 6477496, 8096870, 12954992, 16193740, 32387480, 64774960]

約数ペア:

[(1, 64774960), (2, 32387480), (4, 16193740), (5, 12954992), (8, 8096870), (10, 6477496), (16, 4048435), (20, 3238748), (40, 1619374), (80, 809687), (569, 113840), (1138, 56920), (1423, 45520), (2276, 28460), (2845, 22768), (2846, 22760), (4552, 14230), (5690, 11384), (5692, 11380), (7115, 9104)]