1815040

素因数分解:

$2^9\times 5^1\times {\mathrm{709}}^1$

素因数の和:732

約数の個数: 40

約数和(自身を含む): 4357980

約数和(自身を除く): 2542940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 709, 1280, 1418, 2560, 2836, 3545, 5672, 7090, 11344, 14180, 22688, 28360, 45376, 56720, 90752, 113440, 181504, 226880, 363008, 453760, 907520, 1815040]

約数ペア:

[(1, 1815040), (2, 907520), (4, 453760), (5, 363008), (8, 226880), (10, 181504), (16, 113440), (20, 90752), (32, 56720), (40, 45376), (64, 28360), (80, 22688), (128, 14180), (160, 11344), (256, 7090), (320, 5672), (512, 3545), (640, 2836), (709, 2560), (1280, 1418)]