20205045

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{7127}}^1$

素因数の和:7151

約数の個数: 40

約数和(自身を含む): 41399424

約数和(自身を除く): 21194379

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 7127, 21381, 35635, 49889, 64143, 106905, 149667, 192429, 249445, 320715, 449001, 577287, 748335, 962145, 1347003, 2245005, 2886435, 4041009, 6735015, 20205045]

約数ペア:

[(1, 20205045), (3, 6735015), (5, 4041009), (7, 2886435), (9, 2245005), (15, 1347003), (21, 962145), (27, 748335), (35, 577287), (45, 449001), (63, 320715), (81, 249445), (105, 192429), (135, 149667), (189, 106905), (315, 64143), (405, 49889), (567, 35635), (945, 21381), (2835, 7127)]