128980240

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{9007}}^1$

素因数の和:9199

約数の個数: 40

約数和(自身を含む): 301587840

約数和(自身を除く): 172607600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 7160, 9007, 14320, 18014, 36028, 45035, 72056, 90070, 144112, 180140, 360280, 720560, 1612253, 3224506, 6449012, 8061265, 12898024, 16122530, 25796048, 32245060, 64490120, 128980240]

約数ペア:

[(1, 128980240), (2, 64490120), (4, 32245060), (5, 25796048), (8, 16122530), (10, 12898024), (16, 8061265), (20, 6449012), (40, 3224506), (80, 1612253), (179, 720560), (358, 360280), (716, 180140), (895, 144112), (1432, 90070), (1790, 72056), (2864, 45035), (3580, 36028), (7160, 18014), (9007, 14320)]