139730680

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{6863}}^1$

素因数の和:7383

約数の個数: 32

約数和(自身を含む): 315057600

約数和(自身を除く): 175326920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 6863, 10180, 13726, 20360, 27452, 34315, 54904, 68630, 137260, 274520, 3493267, 6986534, 13973068, 17466335, 27946136, 34932670, 69865340, 139730680]

約数ペア:

[(1, 139730680), (2, 69865340), (4, 34932670), (5, 27946136), (8, 17466335), (10, 13973068), (20, 6986534), (40, 3493267), (509, 274520), (1018, 137260), (2036, 68630), (2545, 54904), (4072, 34315), (5090, 27452), (6863, 20360), (10180, 13726)]