80925680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91961}}^1$

素因数の和:91985

約数の個数: 40

約数和(自身を含む): 205259184

約数和(自身を除く): 124333504

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 91961, 183922, 367844, 459805, 735688, 919610, 1011571, 1471376, 1839220, 2023142, 3678440, 4046284, 5057855, 7356880, 8092568, 10115710, 16185136, 20231420, 40462840, 80925680]

約数ペア:

[(1, 80925680), (2, 40462840), (4, 20231420), (5, 16185136), (8, 10115710), (10, 8092568), (11, 7356880), (16, 5057855), (20, 4046284), (22, 3678440), (40, 2023142), (44, 1839220), (55, 1471376), (80, 1011571), (88, 919610), (110, 735688), (176, 459805), (220, 367844), (440, 183922), (880, 91961)]