20808090

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8563}}^1$

素因数の和:8585

約数の個数: 48

約数和(自身を含む): 56111328

約数和(自身を除く): 35303238

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8563, 17126, 25689, 42815, 51378, 77067, 85630, 128445, 154134, 231201, 256890, 385335, 462402, 693603, 770670, 1156005, 1387206, 2080809, 2312010, 3468015, 4161618, 6936030, 10404045, 20808090]

約数ペア:

[(1, 20808090), (2, 10404045), (3, 6936030), (5, 4161618), (6, 3468015), (9, 2312010), (10, 2080809), (15, 1387206), (18, 1156005), (27, 770670), (30, 693603), (45, 462402), (54, 385335), (81, 256890), (90, 231201), (135, 154134), (162, 128445), (243, 85630), (270, 77067), (405, 51378), (486, 42815), (810, 25689), (1215, 17126), (2430, 8563)]