20495640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15527}}^1$

素因数の和:15552

約数の個数: 64

約数和(自身を含む): 67080960

約数和(自身を除く): 46585320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15527, 31054, 46581, 62108, 77635, 93162, 124216, 155270, 170797, 186324, 232905, 310540, 341594, 372648, 465810, 512391, 621080, 683188, 853985, 931620, 1024782, 1366376, 1707970, 1863240, 2049564, 2561955, 3415940, 4099128, 5123910, 6831880, 10247820, 20495640]

約数ペア:

[(1, 20495640), (2, 10247820), (3, 6831880), (4, 5123910), (5, 4099128), (6, 3415940), (8, 2561955), (10, 2049564), (11, 1863240), (12, 1707970), (15, 1366376), (20, 1024782), (22, 931620), (24, 853985), (30, 683188), (33, 621080), (40, 512391), (44, 465810), (55, 372648), (60, 341594), (66, 310540), (88, 232905), (110, 186324), (120, 170797), (132, 155270), (165, 124216), (220, 93162), (264, 77635), (330, 62108), (440, 46581), (660, 31054), (1320, 15527)]