2021105920

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{23567}}^1$

素因数の和:23655

約数の個数: 72

約数和(自身を含む): 4913645184

約数和(自身を除く): 2892539264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 536, 640, 670, 1072, 1280, 1340, 2144, 2680, 4288, 5360, 8576, 10720, 17152, 21440, 23567, 42880, 47134, 85760, 94268, 117835, 188536, 235670, 377072, 471340, 754144, 942680, 1508288, 1578989, 1885360, 3016576, 3157978, 3770720, 6033152, 6315956, 7541440, 7894945, 12631912, 15082880, 15789890, 25263824, 30165760, 31579780, 50527648, 63159560, 101055296, 126319120, 202110592, 252638240, 404221184, 505276480, 1010552960, 2021105920]

約数ペア:

[(1, 2021105920), (2, 1010552960), (4, 505276480), (5, 404221184), (8, 252638240), (10, 202110592), (16, 126319120), (20, 101055296), (32, 63159560), (40, 50527648), (64, 31579780), (67, 30165760), (80, 25263824), (128, 15789890), (134, 15082880), (160, 12631912), (256, 7894945), (268, 7541440), (320, 6315956), (335, 6033152), (536, 3770720), (640, 3157978), (670, 3016576), (1072, 1885360), (1280, 1578989), (1340, 1508288), (2144, 942680), (2680, 754144), (4288, 471340), (5360, 377072), (8576, 235670), (10720, 188536), (17152, 117835), (21440, 94268), (23567, 85760), (42880, 47134)]