8892880

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1249}}^1$

素因数の和:1351

約数の個数: 40

約数和(自身を含む): 20925000

約数和(自身を除く): 12032120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1249, 1424, 1780, 2498, 3560, 4996, 6245, 7120, 9992, 12490, 19984, 24980, 49960, 99920, 111161, 222322, 444644, 555805, 889288, 1111610, 1778576, 2223220, 4446440, 8892880]

約数ペア:

[(1, 8892880), (2, 4446440), (4, 2223220), (5, 1778576), (8, 1111610), (10, 889288), (16, 555805), (20, 444644), (40, 222322), (80, 111161), (89, 99920), (178, 49960), (356, 24980), (445, 19984), (712, 12490), (890, 9992), (1249, 7120), (1424, 6245), (1780, 4996), (2498, 3560)]