20806130690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{404081}}^1$

素因数の和:404378

約数の個数: 32

約数和(自身を含む): 39567709440

約数和(自身を除く): 18761578750

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 271, 542, 1355, 2710, 5149, 10298, 25745, 51490, 404081, 808162, 2020405, 4040810, 7677539, 15355078, 38387695, 76775390, 109505951, 219011902, 547529755, 1095059510, 2080613069, 4161226138, 10403065345, 20806130690]

約数ペア:

[(1, 20806130690), (2, 10403065345), (5, 4161226138), (10, 2080613069), (19, 1095059510), (38, 547529755), (95, 219011902), (190, 109505951), (271, 76775390), (542, 38387695), (1355, 15355078), (2710, 7677539), (5149, 4040810), (10298, 2020405), (25745, 808162), (51490, 404081)]