2005850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 4660416

約数和(自身を除く): 2654566

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 521, 550, 770, 1042, 1925, 2605, 3647, 3850, 5210, 5731, 7294, 11462, 13025, 18235, 26050, 28655, 36470, 40117, 57310, 80234, 91175, 143275, 182350, 200585, 286550, 401170, 1002925, 2005850]

約数ペア:

[(1, 2005850), (2, 1002925), (5, 401170), (7, 286550), (10, 200585), (11, 182350), (14, 143275), (22, 91175), (25, 80234), (35, 57310), (50, 40117), (55, 36470), (70, 28655), (77, 26050), (110, 18235), (154, 13025), (175, 11462), (275, 7294), (350, 5731), (385, 5210), (521, 3850), (550, 3647), (770, 2605), (1042, 1925)]