20854290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1787}}^1$

素因数の和:2186

約数の個数: 32

約数和(自身を含む): 50207040

約数和(自身を除く): 29352750

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 389, 778, 1167, 1787, 1945, 2334, 3574, 3890, 5361, 5835, 8935, 10722, 11670, 17870, 26805, 53610, 695143, 1390286, 2085429, 3475715, 4170858, 6951430, 10427145, 20854290]

約数ペア:

[(1, 20854290), (2, 10427145), (3, 6951430), (5, 4170858), (6, 3475715), (10, 2085429), (15, 1390286), (30, 695143), (389, 53610), (778, 26805), (1167, 17870), (1787, 11670), (1945, 10722), (2334, 8935), (3574, 5835), (3890, 5361)]