12479990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1$

素因数の和:608

約数の個数: 32

約数和(自身を含む): 23436000

約数和(自身を除く): 10956010

約数列:

[1, 2, 5, 10, 41, 61, 82, 122, 205, 305, 410, 499, 610, 998, 2495, 2501, 4990, 5002, 12505, 20459, 25010, 30439, 40918, 60878, 102295, 152195, 204590, 304390, 1247999, 2495998, 6239995, 12479990]

約数ペア:

[(1, 12479990), (2, 6239995), (5, 2495998), (10, 1247999), (41, 304390), (61, 204590), (82, 152195), (122, 102295), (205, 60878), (305, 40918), (410, 30439), (499, 25010), (610, 20459), (998, 12505), (2495, 5002), (2501, 4990)]