20194307560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{398467}}^1$

素因数の和:398666

約数の個数: 64

約数和(自身を含む): 52215246720

約数和(自身を除く): 32020939160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 724, 905, 1267, 1448, 1810, 2534, 3620, 5068, 6335, 7240, 10136, 12670, 25340, 50680, 398467, 796934, 1593868, 1992335, 2789269, 3187736, 3984670, 5578538, 7969340, 11157076, 13946345, 15938680, 22314152, 27892690, 55785380, 72122527, 111570760, 144245054, 288490108, 360612635, 504857689, 576980216, 721225270, 1009715378, 1442450540, 2019430756, 2524288445, 2884901080, 4038861512, 5048576890, 10097153780, 20194307560]

約数ペア:

[(1, 20194307560), (2, 10097153780), (4, 5048576890), (5, 4038861512), (7, 2884901080), (8, 2524288445), (10, 2019430756), (14, 1442450540), (20, 1009715378), (28, 721225270), (35, 576980216), (40, 504857689), (56, 360612635), (70, 288490108), (140, 144245054), (181, 111570760), (280, 72122527), (362, 55785380), (724, 27892690), (905, 22314152), (1267, 15938680), (1448, 13946345), (1810, 11157076), (2534, 7969340), (3620, 5578538), (5068, 3984670), (6335, 3187736), (7240, 2789269), (10136, 1992335), (12670, 1593868), (25340, 796934), (50680, 398467)]