487889740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1876499}}^1$

素因数の和:1876521

約数の個数: 24

約数和(自身を含む): 1103382000

約数和(自身を除く): 615492260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1876499, 3752998, 7505996, 9382495, 18764990, 24394487, 37529980, 48788974, 97577948, 121972435, 243944870, 487889740]

約数ペア:

[(1, 487889740), (2, 243944870), (4, 121972435), (5, 97577948), (10, 48788974), (13, 37529980), (20, 24394487), (26, 18764990), (52, 9382495), (65, 7505996), (130, 3752998), (260, 1876499)]