81883240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{70589}}^1$

素因数の和:70629

約数の個数: 32

約数和(自身を含む): 190593000

約数和(自身を除く): 108709760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 70589, 141178, 282356, 352945, 564712, 705890, 1411780, 2047081, 2823560, 4094162, 8188324, 10235405, 16376648, 20470810, 40941620, 81883240]

約数ペア:

[(1, 81883240), (2, 40941620), (4, 20470810), (5, 16376648), (8, 10235405), (10, 8188324), (20, 4094162), (29, 2823560), (40, 2047081), (58, 1411780), (116, 705890), (145, 564712), (232, 352945), (290, 282356), (580, 141178), (1160, 70589)]