20078940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47807}}^1$

素因数の和:47826

約数の個数: 48

約数和(自身を含む): 64253952

約数和(自身を除く): 44175012

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, 47807, 95614, 143421, 191228, 239035, 286842, 334649, 478070, 573684, 669298, 717105, 956140, 1003947, 1338596, 1434210, 1673245, 2007894, 2868420, 3346490, 4015788, 5019735, 6692980, 10039470, 20078940]

約数ペア:

[(1, 20078940), (2, 10039470), (3, 6692980), (4, 5019735), (5, 4015788), (6, 3346490), (7, 2868420), (10, 2007894), (12, 1673245), (14, 1434210), (15, 1338596), (20, 1003947), (21, 956140), (28, 717105), (30, 669298), (35, 573684), (42, 478070), (60, 334649), (70, 286842), (84, 239035), (105, 191228), (140, 143421), (210, 95614), (420, 47807)]