28901120

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 70468944

約数和(自身を除く): 41567824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 337, 536, 640, 670, 674, 1072, 1280, 1340, 1348, 1685, 2144, 2680, 2696, 3370, 4288, 5360, 5392, 6740, 8576, 10720, 10784, 13480, 17152, 21440, 21568, 22579, 26960, 42880, 43136, 45158, 53920, 85760, 86272, 90316, 107840, 112895, 180632, 215680, 225790, 361264, 431360, 451580, 722528, 903160, 1445056, 1806320, 2890112, 3612640, 5780224, 7225280, 14450560, 28901120]

約数ペア:

[(1, 28901120), (2, 14450560), (4, 7225280), (5, 5780224), (8, 3612640), (10, 2890112), (16, 1806320), (20, 1445056), (32, 903160), (40, 722528), (64, 451580), (67, 431360), (80, 361264), (128, 225790), (134, 215680), (160, 180632), (256, 112895), (268, 107840), (320, 90316), (335, 86272), (337, 85760), (536, 53920), (640, 45158), (670, 43136), (674, 42880), (1072, 26960), (1280, 22579), (1340, 21568), (1348, 21440), (1685, 17152), (2144, 13480), (2680, 10784), (2696, 10720), (3370, 8576), (4288, 6740), (5360, 5392)]