2518280

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 5716440

約数和(自身を除く): 3198160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 401, 628, 785, 802, 1256, 1570, 1604, 2005, 3140, 3208, 4010, 6280, 8020, 16040, 62957, 125914, 251828, 314785, 503656, 629570, 1259140, 2518280]

約数ペア:

[(1, 2518280), (2, 1259140), (4, 629570), (5, 503656), (8, 314785), (10, 251828), (20, 125914), (40, 62957), (157, 16040), (314, 8020), (401, 6280), (628, 4010), (785, 3208), (802, 3140), (1256, 2005), (1570, 1604)]