18376820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11933}}^1$

素因数の和:11960

約数の個数: 48

約数和(自身を含む): 48117888

約数和(自身を除く): 29741068

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 11933, 23866, 47732, 59665, 83531, 119330, 131263, 167062, 238660, 262526, 334124, 417655, 525052, 656315, 835310, 918841, 1312630, 1670620, 1837682, 2625260, 3675364, 4594205, 9188410, 18376820]

約数ペア:

[(1, 18376820), (2, 9188410), (4, 4594205), (5, 3675364), (7, 2625260), (10, 1837682), (11, 1670620), (14, 1312630), (20, 918841), (22, 835310), (28, 656315), (35, 525052), (44, 417655), (55, 334124), (70, 262526), (77, 238660), (110, 167062), (140, 131263), (154, 119330), (220, 83531), (308, 59665), (385, 47732), (770, 23866), (1540, 11933)]