81255580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{34141}}^1$

素因数の和:34174

約数の個数: 48

約数和(自身を含む): 206490816

約数和(自身を除く): 125235236

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 34141, 68282, 136564, 170705, 238987, 341410, 477974, 580397, 682820, 955948, 1160794, 1194935, 2321588, 2389870, 2901985, 4062779, 4779740, 5803970, 8125558, 11607940, 16251116, 20313895, 40627790, 81255580]

約数ペア:

[(1, 81255580), (2, 40627790), (4, 20313895), (5, 16251116), (7, 11607940), (10, 8125558), (14, 5803970), (17, 4779740), (20, 4062779), (28, 2901985), (34, 2389870), (35, 2321588), (68, 1194935), (70, 1160794), (85, 955948), (119, 682820), (140, 580397), (170, 477974), (238, 341410), (340, 238987), (476, 170705), (595, 136564), (1190, 68282), (2380, 34141)]