20499780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48809}}^1$

素因数の和:48828

約数の個数: 48

約数和(自身を含む): 65600640

約数和(自身を除く): 45100860

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, 48809, 97618, 146427, 195236, 244045, 292854, 341663, 488090, 585708, 683326, 732135, 976180, 1024989, 1366652, 1464270, 1708315, 2049978, 2928540, 3416630, 4099956, 5124945, 6833260, 10249890, 20499780]

約数ペア:

[(1, 20499780), (2, 10249890), (3, 6833260), (4, 5124945), (5, 4099956), (6, 3416630), (7, 2928540), (10, 2049978), (12, 1708315), (14, 1464270), (15, 1366652), (20, 1024989), (21, 976180), (28, 732135), (30, 683326), (35, 585708), (42, 488090), (60, 341663), (70, 292854), (84, 244045), (105, 195236), (140, 146427), (210, 97618), (420, 48809)]