28623290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1109}}^1$

素因数の和:1234

約数の個数: 32

約数和(自身を含む): 53946000

約数和(自身を除く): 25322710

約数列:

[1, 2, 5, 10, 29, 58, 89, 145, 178, 290, 445, 890, 1109, 2218, 2581, 5162, 5545, 11090, 12905, 25810, 32161, 64322, 98701, 160805, 197402, 321610, 493505, 987010, 2862329, 5724658, 14311645, 28623290]

約数ペア:

[(1, 28623290), (2, 14311645), (5, 5724658), (10, 2862329), (29, 987010), (58, 493505), (89, 321610), (145, 197402), (178, 160805), (290, 98701), (445, 64322), (890, 32161), (1109, 25810), (2218, 12905), (2581, 11090), (5162, 5545)]