20759620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1877}}^1$

素因数の和:1972

約数の個数: 48

約数和(自身を含む): 50480640

約数和(自身を除く): 29721020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 1877, 2212, 2765, 3754, 5530, 7508, 9385, 11060, 13139, 18770, 26278, 37540, 52556, 65695, 131390, 148283, 262780, 296566, 593132, 741415, 1037981, 1482830, 2075962, 2965660, 4151924, 5189905, 10379810, 20759620]

約数ペア:

[(1, 20759620), (2, 10379810), (4, 5189905), (5, 4151924), (7, 2965660), (10, 2075962), (14, 1482830), (20, 1037981), (28, 741415), (35, 593132), (70, 296566), (79, 262780), (140, 148283), (158, 131390), (316, 65695), (395, 52556), (553, 37540), (790, 26278), (1106, 18770), (1580, 13139), (1877, 11060), (2212, 9385), (2765, 7508), (3754, 5530)]