20881230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16187}}^1$

素因数の和:16240

約数の個数: 32

約数和(自身を含む): 51283584

約数和(自身を除く): 30402354

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16187, 32374, 48561, 80935, 97122, 161870, 242805, 485610, 696041, 1392082, 2088123, 3480205, 4176246, 6960410, 10440615, 20881230]

約数ペア:

[(1, 20881230), (2, 10440615), (3, 6960410), (5, 4176246), (6, 3480205), (10, 2088123), (15, 1392082), (30, 696041), (43, 485610), (86, 242805), (129, 161870), (215, 97122), (258, 80935), (430, 48561), (645, 32374), (1290, 16187)]