154972580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1117}}^1$

素因数の和:2124

約数の個数: 48

約数和(自身を含む): 372642816

約数和(自身を除く): 217670236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 991, 1117, 1982, 2234, 3964, 4468, 4955, 5585, 6937, 7819, 9910, 11170, 13874, 15638, 19820, 22340, 27748, 31276, 34685, 39095, 69370, 78190, 138740, 156380, 1106947, 2213894, 4427788, 5534735, 7748629, 11069470, 15497258, 22138940, 30994516, 38743145, 77486290, 154972580]

約数ペア:

[(1, 154972580), (2, 77486290), (4, 38743145), (5, 30994516), (7, 22138940), (10, 15497258), (14, 11069470), (20, 7748629), (28, 5534735), (35, 4427788), (70, 2213894), (140, 1106947), (991, 156380), (1117, 138740), (1982, 78190), (2234, 69370), (3964, 39095), (4468, 34685), (4955, 31276), (5585, 27748), (6937, 22340), (7819, 19820), (9910, 15638), (11170, 13874)]