2018903920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2294209}}^1$

素因数の和:2294233

約数の個数: 40

約数和(自身を含む): 5120676720

約数和(自身を除く): 3101772800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2294209, 4588418, 9176836, 11471045, 18353672, 22942090, 25236299, 36707344, 45884180, 50472598, 91768360, 100945196, 126181495, 183536720, 201890392, 252362990, 403780784, 504725980, 1009451960, 2018903920]

約数ペア:

[(1, 2018903920), (2, 1009451960), (4, 504725980), (5, 403780784), (8, 252362990), (10, 201890392), (11, 183536720), (16, 126181495), (20, 100945196), (22, 91768360), (40, 50472598), (44, 45884180), (55, 36707344), (80, 25236299), (88, 22942090), (110, 18353672), (176, 11471045), (220, 9176836), (440, 4588418), (880, 2294209)]