28511495

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 9504505

約数列:

[1, 5, 19, 29, 79, 95, 131, 145, 395, 551, 655, 1501, 2291, 2489, 2755, 3799, 7505, 10349, 11455, 12445, 18995, 43529, 51745, 72181, 196631, 217645, 300121, 360905, 983155, 1500605, 5702299, 28511495]

約数ペア:

[(1, 28511495), (5, 5702299), (19, 1500605), (29, 983155), (79, 360905), (95, 300121), (131, 217645), (145, 196631), (395, 72181), (551, 51745), (655, 43529), (1501, 18995), (2291, 12445), (2489, 11455), (2755, 10349), (3799, 7505)]