20848380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49639}}^1$

素因数の和:49658

約数の個数: 48

約数和(自身を含む): 66716160

約数和(自身を除く): 45867780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49639, 99278, 148917, 198556, 248195, 297834, 347473, 496390, 595668, 694946, 744585, 992780, 1042419, 1389892, 1489170, 1737365, 2084838, 2978340, 3474730, 4169676, 5212095, 6949460, 10424190, 20848380]

約数ペア:

[(1, 20848380), (2, 10424190), (3, 6949460), (4, 5212095), (5, 4169676), (6, 3474730), (7, 2978340), (10, 2084838), (12, 1737365), (14, 1489170), (15, 1389892), (20, 1042419), (21, 992780), (28, 744585), (30, 694946), (35, 595668), (42, 496390), (60, 347473), (70, 297834), (84, 248195), (105, 198556), (140, 148917), (210, 99278), (420, 49639)]