4439960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 11603520

約数和(自身を除く): 7163560

約数列:

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

約数ペア:

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