128159480

素因数分解:

$2^3\times 5^1\times {\mathrm{911}}^1\times {\mathrm{3517}}^1$

素因数の和:4439

約数の個数: 32

約数和(自身を含む): 288757440

約数和(自身を除く): 160597960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 911, 1822, 3517, 3644, 4555, 7034, 7288, 9110, 14068, 17585, 18220, 28136, 35170, 36440, 70340, 140680, 3203987, 6407974, 12815948, 16019935, 25631896, 32039870, 64079740, 128159480]

約数ペア:

[(1, 128159480), (2, 64079740), (4, 32039870), (5, 25631896), (8, 16019935), (10, 12815948), (20, 6407974), (40, 3203987), (911, 140680), (1822, 70340), (3517, 36440), (3644, 35170), (4555, 28136), (7034, 18220), (7288, 17585), (9110, 14068)]