15390980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{69959}}^1$

素因数の和:69979

約数の個数: 24

約数和(自身を含む): 35259840

約数和(自身を除く): 19868860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 69959, 139918, 279836, 349795, 699590, 769549, 1399180, 1539098, 3078196, 3847745, 7695490, 15390980]

約数ペア:

[(1, 15390980), (2, 7695490), (4, 3847745), (5, 3078196), (10, 1539098), (11, 1399180), (20, 769549), (22, 699590), (44, 349795), (55, 279836), (110, 139918), (220, 69959)]