280473368

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{161563}}^1$

素因数の和:161607

約数の個数: 32

約数和(自身を含む): 620405760

約数和(自身を除く): 339932392

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 161563, 323126, 646252, 1130941, 1292504, 2261882, 4523764, 5008453, 9047528, 10016906, 20033812, 35059171, 40067624, 70118342, 140236684, 280473368]

約数ペア:

[(1, 280473368), (2, 140236684), (4, 70118342), (7, 40067624), (8, 35059171), (14, 20033812), (28, 10016906), (31, 9047528), (56, 5008453), (62, 4523764), (124, 2261882), (217, 1292504), (248, 1130941), (434, 646252), (868, 323126), (1736, 161563)]