20882820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{7103}}^1$

素因数の和:7129

約数の個数: 72

約数和(自身を含む): 68027904

約数和(自身を除く): 47145084

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 7103, 14206, 21309, 28412, 35515, 42618, 49721, 71030, 85236, 99442, 106545, 142060, 149163, 198884, 213090, 248605, 298326, 348047, 426180, 497210, 596652, 696094, 745815, 994420, 1044141, 1392188, 1491630, 1740235, 2088282, 2983260, 3480470, 4176564, 5220705, 6960940, 10441410, 20882820]

約数ペア:

[(1, 20882820), (2, 10441410), (3, 6960940), (4, 5220705), (5, 4176564), (6, 3480470), (7, 2983260), (10, 2088282), (12, 1740235), (14, 1491630), (15, 1392188), (20, 1044141), (21, 994420), (28, 745815), (30, 696094), (35, 596652), (42, 497210), (49, 426180), (60, 348047), (70, 298326), (84, 248605), (98, 213090), (105, 198884), (140, 149163), (147, 142060), (196, 106545), (210, 99442), (245, 85236), (294, 71030), (420, 49721), (490, 42618), (588, 35515), (735, 28412), (980, 21309), (1470, 14206), (2940, 7103)]