81984316

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{25087}}^1$

素因数の和:25153

約数の個数: 24

約数和(自身を含む): 154542080

約数和(自身を除く): 72557764

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 25087, 50174, 100348, 476653, 953306, 1078741, 1906612, 2157482, 4314964, 20496079, 40992158, 81984316]

約数ペア:

[(1, 81984316), (2, 40992158), (4, 20496079), (19, 4314964), (38, 2157482), (43, 1906612), (76, 1078741), (86, 953306), (172, 476653), (817, 100348), (1634, 50174), (3268, 25087)]