20199083720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8278313}}^1$

素因数の和:8278385

約数の個数: 32

約数和(自身を含む): 46192992120

約数和(自身を除く): 25993908400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 8278313, 16556626, 33113252, 41391565, 66226504, 82783130, 165566260, 331132520, 504977093, 1009954186, 2019908372, 2524885465, 4039816744, 5049770930, 10099541860, 20199083720]

約数ペア:

[(1, 20199083720), (2, 10099541860), (4, 5049770930), (5, 4039816744), (8, 2524885465), (10, 2019908372), (20, 1009954186), (40, 504977093), (61, 331132520), (122, 165566260), (244, 82783130), (305, 66226504), (488, 41391565), (610, 33113252), (1220, 16556626), (2440, 8278313)]