1303040

素因数分解:

$2^9\times 5^1\times {\mathrm{509}}^1$

素因数の和:532

約数の個数: 40

約数和(自身を含む): 3130380

約数和(自身を除く): 1827340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 509, 512, 640, 1018, 1280, 2036, 2545, 2560, 4072, 5090, 8144, 10180, 16288, 20360, 32576, 40720, 65152, 81440, 130304, 162880, 260608, 325760, 651520, 1303040]

約数ペア:

[(1, 1303040), (2, 651520), (4, 325760), (5, 260608), (8, 162880), (10, 130304), (16, 81440), (20, 65152), (32, 40720), (40, 32576), (64, 20360), (80, 16288), (128, 10180), (160, 8144), (256, 5090), (320, 4072), (509, 2560), (512, 2545), (640, 2036), (1018, 1280)]