30851855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 41969664

約数和(自身を除く): 11117809

約数列:

[1, 5, 17, 23, 43, 85, 115, 215, 367, 391, 731, 989, 1835, 1955, 3655, 4945, 6239, 8441, 15781, 16813, 31195, 42205, 78905, 84065, 143497, 268277, 362963, 717485, 1341385, 1814815, 6170371, 30851855]

約数ペア:

[(1, 30851855), (5, 6170371), (17, 1814815), (23, 1341385), (43, 717485), (85, 362963), (115, 268277), (215, 143497), (367, 84065), (391, 78905), (731, 42205), (989, 31195), (1835, 16813), (1955, 15781), (3655, 8441), (4945, 6239)]