19173040

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{541}}^1$

素因数の和:997

約数の個数: 40

約数和(自身を含む): 44760528

約数和(自身を除く): 25587488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 541, 886, 1082, 1772, 2164, 2215, 2705, 3544, 4328, 4430, 5410, 7088, 8656, 8860, 10820, 17720, 21640, 35440, 43280, 239663, 479326, 958652, 1198315, 1917304, 2396630, 3834608, 4793260, 9586520, 19173040]

約数ペア:

[(1, 19173040), (2, 9586520), (4, 4793260), (5, 3834608), (8, 2396630), (10, 1917304), (16, 1198315), (20, 958652), (40, 479326), (80, 239663), (443, 43280), (541, 35440), (886, 21640), (1082, 17720), (1772, 10820), (2164, 8860), (2215, 8656), (2705, 7088), (3544, 5410), (4328, 4430)]