1306880

素因数分解:

$2^8\times 5^1\times {\mathrm{1021}}^1$

素因数の和:1042

約数の個数: 36

約数和(自身を含む): 3133452

約数和(自身を除く): 1826572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1021, 1280, 2042, 4084, 5105, 8168, 10210, 16336, 20420, 32672, 40840, 65344, 81680, 130688, 163360, 261376, 326720, 653440, 1306880]

約数ペア:

[(1, 1306880), (2, 653440), (4, 326720), (5, 261376), (8, 163360), (10, 130688), (16, 81680), (20, 65344), (32, 40840), (40, 32672), (64, 20420), (80, 16336), (128, 10210), (160, 8168), (256, 5105), (320, 4084), (640, 2042), (1021, 1280)]