20567290

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 18333446

約数列:

[1, 2, 5, 10, 23, 46, 115, 223, 230, 401, 446, 802, 1115, 2005, 2230, 4010, 5129, 9223, 10258, 18446, 25645, 46115, 51290, 89423, 92230, 178846, 447115, 894230, 2056729, 4113458, 10283645, 20567290]

約数ペア:

[(1, 20567290), (2, 10283645), (5, 4113458), (10, 2056729), (23, 894230), (46, 447115), (115, 178846), (223, 92230), (230, 89423), (401, 51290), (446, 46115), (802, 25645), (1115, 18446), (2005, 10258), (2230, 9223), (4010, 5129)]