20128227905

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{6917}}^1$

素因数の和:7193

約数の個数: 32

約数和(自身を含む): 25104038400

約数和(自身を除く): 4975810495

約数列:

[1, 5, 53, 79, 139, 265, 395, 695, 4187, 6917, 7367, 10981, 20935, 34585, 36835, 54905, 366601, 546443, 581993, 961463, 1833005, 2732215, 2909965, 4807315, 28961479, 50957539, 75955577, 144807395, 254787695, 379777885, 4025645581, 20128227905]

約数ペア:

[(1, 20128227905), (5, 4025645581), (53, 379777885), (79, 254787695), (139, 144807395), (265, 75955577), (395, 50957539), (695, 28961479), (4187, 4807315), (6917, 2909965), (7367, 2732215), (10981, 1833005), (20935, 961463), (34585, 581993), (36835, 546443), (54905, 366601)]