80989132

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{40739}}^1$

素因数の和:40821

約数の個数: 24

約数和(自身を含む): 164263680

約数和(自身を除く): 83274548

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 40739, 81478, 162956, 285173, 570346, 1140692, 2892469, 5784938, 11569876, 20247283, 40494566, 80989132]

約数ペア:

[(1, 80989132), (2, 40494566), (4, 20247283), (7, 11569876), (14, 5784938), (28, 2892469), (71, 1140692), (142, 570346), (284, 285173), (497, 162956), (994, 81478), (1988, 40739)]