81507020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{577}}^1\times {\mathrm{1009}}^1$

素因数の和:1602

約数の個数: 48

約数和(自身を含む): 196150080

約数和(自身を除く): 114643060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 577, 1009, 1154, 2018, 2308, 2885, 4036, 4039, 5045, 5770, 7063, 8078, 10090, 11540, 14126, 16156, 20180, 20195, 28252, 35315, 40390, 70630, 80780, 141260, 582193, 1164386, 2328772, 2910965, 4075351, 5821930, 8150702, 11643860, 16301404, 20376755, 40753510, 81507020]

約数ペア:

[(1, 81507020), (2, 40753510), (4, 20376755), (5, 16301404), (7, 11643860), (10, 8150702), (14, 5821930), (20, 4075351), (28, 2910965), (35, 2328772), (70, 1164386), (140, 582193), (577, 141260), (1009, 80780), (1154, 70630), (2018, 40390), (2308, 35315), (2885, 28252), (4036, 20195), (4039, 20180), (5045, 16156), (5770, 14126), (7063, 11540), (8078, 10090)]