64943380

素因数分解:

$2^2\times 5^1\times {\mathrm{1327}}^1\times {\mathrm{2447}}^1$

素因数の和:3783

約数の個数: 24

約数和(自身を含む): 136539648

約数和(自身を除く): 71596268

約数列:

[1, 2, 4, 5, 10, 20, 1327, 2447, 2654, 4894, 5308, 6635, 9788, 12235, 13270, 24470, 26540, 48940, 3247169, 6494338, 12988676, 16235845, 32471690, 64943380]

約数ペア:

[(1, 64943380), (2, 32471690), (4, 16235845), (5, 12988676), (10, 6494338), (20, 3247169), (1327, 48940), (2447, 26540), (2654, 24470), (4894, 13270), (5308, 12235), (6635, 9788)]