51805640

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{5419}}^1$

素因数の和:5669

約数の個数: 32

約数和(自身を含む): 117072000

約数和(自身を除く): 65266360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 5419, 9560, 10838, 21676, 27095, 43352, 54190, 108380, 216760, 1295141, 2590282, 5180564, 6475705, 10361128, 12951410, 25902820, 51805640]

約数ペア:

[(1, 51805640), (2, 25902820), (4, 12951410), (5, 10361128), (8, 6475705), (10, 5180564), (20, 2590282), (40, 1295141), (239, 216760), (478, 108380), (956, 54190), (1195, 43352), (1912, 27095), (2390, 21676), (4780, 10838), (5419, 9560)]