829123640

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{51691}}^1$

素因数の和:52103

約数の個数: 32

約数和(自身を含む): 1870216560

約数和(自身を除く): 1041092920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 16040, 51691, 103382, 206764, 258455, 413528, 516910, 1033820, 2067640, 20728091, 41456182, 82912364, 103640455, 165824728, 207280910, 414561820, 829123640]

約数ペア:

[(1, 829123640), (2, 414561820), (4, 207280910), (5, 165824728), (8, 103640455), (10, 82912364), (20, 41456182), (40, 20728091), (401, 2067640), (802, 1033820), (1604, 516910), (2005, 413528), (3208, 258455), (4010, 206764), (8020, 103382), (16040, 51691)]