634280

素因数分解:

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

素因数の和:269

約数の個数: 32

約数和(自身を含む): 1450440

約数和(自身を除く): 816160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 157, 202, 314, 404, 505, 628, 785, 808, 1010, 1256, 1570, 2020, 3140, 4040, 6280, 15857, 31714, 63428, 79285, 126856, 158570, 317140, 634280]

約数ペア:

[(1, 634280), (2, 317140), (4, 158570), (5, 126856), (8, 79285), (10, 63428), (20, 31714), (40, 15857), (101, 6280), (157, 4040), (202, 3140), (314, 2020), (404, 1570), (505, 1256), (628, 1010), (785, 808)]