42145540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{499}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 91728000

約数和(自身を除く): 49582460

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 103, 164, 205, 206, 410, 412, 499, 515, 820, 998, 1030, 1996, 2060, 2495, 4223, 4990, 8446, 9980, 16892, 20459, 21115, 40918, 42230, 51397, 81836, 84460, 102295, 102794, 204590, 205588, 256985, 409180, 513970, 1027940, 2107277, 4214554, 8429108, 10536385, 21072770, 42145540]

約数ペア:

[(1, 42145540), (2, 21072770), (4, 10536385), (5, 8429108), (10, 4214554), (20, 2107277), (41, 1027940), (82, 513970), (103, 409180), (164, 256985), (205, 205588), (206, 204590), (410, 102794), (412, 102295), (499, 84460), (515, 81836), (820, 51397), (998, 42230), (1030, 40918), (1996, 21115), (2060, 20459), (2495, 16892), (4223, 9980), (4990, 8446)]