8879920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 23980608

約数和(自身を除く): 15100688

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 140, 157, 202, 280, 314, 404, 505, 560, 628, 707, 785, 808, 1010, 1099, 1256, 1414, 1570, 1616, 2020, 2198, 2512, 2828, 3140, 3535, 4040, 4396, 5495, 5656, 6280, 7070, 8080, 8792, 10990, 11312, 12560, 14140, 15857, 17584, 21980, 28280, 31714, 43960, 56560, 63428, 79285, 87920, 110999, 126856, 158570, 221998, 253712, 317140, 443996, 554995, 634280, 887992, 1109990, 1268560, 1775984, 2219980, 4439960, 8879920]

約数ペア:

[(1, 8879920), (2, 4439960), (4, 2219980), (5, 1775984), (7, 1268560), (8, 1109990), (10, 887992), (14, 634280), (16, 554995), (20, 443996), (28, 317140), (35, 253712), (40, 221998), (56, 158570), (70, 126856), (80, 110999), (101, 87920), (112, 79285), (140, 63428), (157, 56560), (202, 43960), (280, 31714), (314, 28280), (404, 21980), (505, 17584), (560, 15857), (628, 14140), (707, 12560), (785, 11312), (808, 10990), (1010, 8792), (1099, 8080), (1256, 7070), (1414, 6280), (1570, 5656), (1616, 5495), (2020, 4396), (2198, 4040), (2512, 3535), (2828, 3140)]