20876480

素因数分解:

$2^6\times 5^1\times {\mathrm{65239}}^1$

素因数の和:65256

約数の個数: 28

約数和(自身を含む): 49712880

約数和(自身を除く): 28836400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65239, 130478, 260956, 326195, 521912, 652390, 1043824, 1304780, 2087648, 2609560, 4175296, 5219120, 10438240, 20876480]

約数ペア:

[(1, 20876480), (2, 10438240), (4, 5219120), (5, 4175296), (8, 2609560), (10, 2087648), (16, 1304780), (20, 1043824), (32, 652390), (40, 521912), (64, 326195), (80, 260956), (160, 130478), (320, 65239)]