144440540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1\times {\mathrm{499}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 312228000

約数和(自身を除く): 167787460

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 353, 410, 499, 706, 820, 998, 1412, 1765, 1996, 2495, 3530, 4990, 7060, 9980, 14473, 20459, 28946, 40918, 57892, 72365, 81836, 102295, 144730, 176147, 204590, 289460, 352294, 409180, 704588, 880735, 1761470, 3522940, 7222027, 14444054, 28888108, 36110135, 72220270, 144440540]

約数ペア:

[(1, 144440540), (2, 72220270), (4, 36110135), (5, 28888108), (10, 14444054), (20, 7222027), (41, 3522940), (82, 1761470), (164, 880735), (205, 704588), (353, 409180), (410, 352294), (499, 289460), (706, 204590), (820, 176147), (998, 144730), (1412, 102295), (1765, 81836), (1996, 72365), (2495, 57892), (3530, 40918), (4990, 28946), (7060, 20459), (9980, 14473)]