68391640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89989}}^1$

素因数の和:90019

約数の個数: 32

約数和(自身を含む): 161982000

約数和(自身を除く): 93590360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 89989, 179978, 359956, 449945, 719912, 899890, 1709791, 1799780, 3419582, 3599560, 6839164, 8548955, 13678328, 17097910, 34195820, 68391640]

約数ペア:

[(1, 68391640), (2, 34195820), (4, 17097910), (5, 13678328), (8, 8548955), (10, 6839164), (19, 3599560), (20, 3419582), (38, 1799780), (40, 1709791), (76, 899890), (95, 719912), (152, 449945), (190, 359956), (380, 179978), (760, 89989)]