20560980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31153}}^1$

素因数の和:31176

約数の個数: 48

約数和(自身を含む): 62806464

約数和(自身を除く): 42245484

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31153, 62306, 93459, 124612, 155765, 186918, 311530, 342683, 373836, 467295, 623060, 685366, 934590, 1028049, 1370732, 1713415, 1869180, 2056098, 3426830, 4112196, 5140245, 6853660, 10280490, 20560980]

約数ペア:

[(1, 20560980), (2, 10280490), (3, 6853660), (4, 5140245), (5, 4112196), (6, 3426830), (10, 2056098), (11, 1869180), (12, 1713415), (15, 1370732), (20, 1028049), (22, 934590), (30, 685366), (33, 623060), (44, 467295), (55, 373836), (60, 342683), (66, 311530), (110, 186918), (132, 155765), (165, 124612), (220, 93459), (330, 62306), (660, 31153)]