19368580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12577}}^1$

素因数の和:12604

約数の個数: 48

約数和(自身を含む): 50714496

約数和(自身を除く): 31345916

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, 12577, 25154, 50308, 62885, 88039, 125770, 138347, 176078, 251540, 276694, 352156, 440195, 553388, 691735, 880390, 968429, 1383470, 1760780, 1936858, 2766940, 3873716, 4842145, 9684290, 19368580]

約数ペア:

[(1, 19368580), (2, 9684290), (4, 4842145), (5, 3873716), (7, 2766940), (10, 1936858), (11, 1760780), (14, 1383470), (20, 968429), (22, 880390), (28, 691735), (35, 553388), (44, 440195), (55, 352156), (70, 276694), (77, 251540), (110, 176078), (140, 138347), (154, 125770), (220, 88039), (308, 62885), (385, 50308), (770, 25154), (1540, 12577)]