20485740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31039}}^1$

素因数の和:31062

約数の個数: 48

約数和(自身を含む): 62576640

約数和(自身を除く): 42090900

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, 31039, 62078, 93117, 124156, 155195, 186234, 310390, 341429, 372468, 465585, 620780, 682858, 931170, 1024287, 1365716, 1707145, 1862340, 2048574, 3414290, 4097148, 5121435, 6828580, 10242870, 20485740]

約数ペア:

[(1, 20485740), (2, 10242870), (3, 6828580), (4, 5121435), (5, 4097148), (6, 3414290), (10, 2048574), (11, 1862340), (12, 1707145), (15, 1365716), (20, 1024287), (22, 931170), (30, 682858), (33, 620780), (44, 465585), (55, 372468), (60, 341429), (66, 310390), (110, 186234), (132, 155195), (165, 124156), (220, 93117), (330, 62078), (660, 31039)]