51701840

素因数分解:

$2^4\times 5^1\times {\mathrm{646273}}^1$

素因数の和:646286

約数の個数: 20

約数和(自身を含む): 120206964

約数和(自身を除く): 68505124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 646273, 1292546, 2585092, 3231365, 5170184, 6462730, 10340368, 12925460, 25850920, 51701840]

約数ペア:

[(1, 51701840), (2, 25850920), (4, 12925460), (5, 10340368), (8, 6462730), (10, 5170184), (16, 3231365), (20, 2585092), (40, 1292546), (80, 646273)]