280643840

素因数分解:

$2^8\times 5^1\times {\mathrm{233}}^1\times {\mathrm{941}}^1$

素因数の和:1195

約数の個数: 72

約数和(自身を含む): 675832248

約数和(自身を除く): 395188408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 233, 256, 320, 466, 640, 932, 941, 1165, 1280, 1864, 1882, 2330, 3728, 3764, 4660, 4705, 7456, 7528, 9320, 9410, 14912, 15056, 18640, 18820, 29824, 30112, 37280, 37640, 59648, 60224, 74560, 75280, 120448, 149120, 150560, 219253, 240896, 298240, 301120, 438506, 602240, 877012, 1096265, 1204480, 1754024, 2192530, 3508048, 4385060, 7016096, 8770120, 14032192, 17540240, 28064384, 35080480, 56128768, 70160960, 140321920, 280643840]

約数ペア:

[(1, 280643840), (2, 140321920), (4, 70160960), (5, 56128768), (8, 35080480), (10, 28064384), (16, 17540240), (20, 14032192), (32, 8770120), (40, 7016096), (64, 4385060), (80, 3508048), (128, 2192530), (160, 1754024), (233, 1204480), (256, 1096265), (320, 877012), (466, 602240), (640, 438506), (932, 301120), (941, 298240), (1165, 240896), (1280, 219253), (1864, 150560), (1882, 149120), (2330, 120448), (3728, 75280), (3764, 74560), (4660, 60224), (4705, 59648), (7456, 37640), (7528, 37280), (9320, 30112), (9410, 29824), (14912, 18820), (15056, 18640)]