81575445

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2707}}^1$

素因数の和:2770

約数の個数: 48

約数和(自身を含む): 155590848

約数和(自身を除く): 74015403

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 49, 105, 123, 147, 205, 245, 287, 615, 735, 861, 1435, 2009, 2707, 4305, 6027, 8121, 10045, 13535, 18949, 30135, 40605, 56847, 94745, 110987, 132643, 284235, 332961, 397929, 554935, 663215, 776909, 1664805, 1989645, 2330727, 3884545, 5438363, 11653635, 16315089, 27191815, 81575445]

約数ペア:

[(1, 81575445), (3, 27191815), (5, 16315089), (7, 11653635), (15, 5438363), (21, 3884545), (35, 2330727), (41, 1989645), (49, 1664805), (105, 776909), (123, 663215), (147, 554935), (205, 397929), (245, 332961), (287, 284235), (615, 132643), (735, 110987), (861, 94745), (1435, 56847), (2009, 40605), (2707, 30135), (4305, 18949), (6027, 13535), (8121, 10045)]