28785885

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 47278080

約数和(自身を除く): 18492195

約数列:

[1, 3, 5, 15, 71, 151, 179, 213, 355, 453, 537, 755, 895, 1065, 2265, 2685, 10721, 12709, 27029, 32163, 38127, 53605, 63545, 81087, 135145, 160815, 190635, 405435, 1919059, 5757177, 9595295, 28785885]

約数ペア:

[(1, 28785885), (3, 9595295), (5, 5757177), (15, 1919059), (71, 405435), (151, 190635), (179, 160815), (213, 135145), (355, 81087), (453, 63545), (537, 53605), (755, 38127), (895, 32163), (1065, 27029), (2265, 12709), (2685, 10721)]