321272728

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{80803}}^1$

素因数の和:80887

約数の個数: 32

約数和(自身を含む): 698146560

約数和(自身を除く): 376873832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 80803, 161606, 323212, 565621, 646424, 1131242, 2262484, 4524968, 5737013, 11474026, 22948052, 40159091, 45896104, 80318182, 160636364, 321272728]

約数ペア:

[(1, 321272728), (2, 160636364), (4, 80318182), (7, 45896104), (8, 40159091), (14, 22948052), (28, 11474026), (56, 5737013), (71, 4524968), (142, 2262484), (284, 1131242), (497, 646424), (568, 565621), (994, 323212), (1988, 161606), (3976, 80803)]