28165870

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 51995520

約数和(自身を除く): 23829650

約数列:

[1, 2, 5, 10, 79, 101, 158, 202, 353, 395, 505, 706, 790, 1010, 1765, 3530, 7979, 15958, 27887, 35653, 39895, 55774, 71306, 79790, 139435, 178265, 278870, 356530, 2816587, 5633174, 14082935, 28165870]

約数ペア:

[(1, 28165870), (2, 14082935), (5, 5633174), (10, 2816587), (79, 356530), (101, 278870), (158, 178265), (202, 139435), (353, 79790), (395, 71306), (505, 55774), (706, 39895), (790, 35653), (1010, 27887), (1765, 15958), (3530, 7979)]