1820891810

素因数分解:

$2^1\times 5^1\times {\mathrm{8461}}^1\times {\mathrm{21521}}^1$

素因数の和:29989

約数の個数: 16

約数和(自身を含む): 3278144952

約数和(自身を除く): 1457253142

約数列:

[1, 2, 5, 10, 8461, 16922, 21521, 42305, 43042, 84610, 107605, 215210, 182089181, 364178362, 910445905, 1820891810]

約数ペア:

[(1, 1820891810), (2, 910445905), (5, 364178362), (10, 182089181), (8461, 215210), (16922, 107605), (21521, 84610), (42305, 43042)]