217687540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{887}}^1\times {\mathrm{1753}}^1$

素因数の和:2656

約数の個数: 48

約数和(自身を含む): 523337472

約数和(自身を除く): 305649932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 887, 1753, 1774, 3506, 3548, 4435, 6209, 7012, 8765, 8870, 12271, 12418, 17530, 17740, 24542, 24836, 31045, 35060, 49084, 61355, 62090, 122710, 124180, 245420, 1554911, 3109822, 6219644, 7774555, 10884377, 15549110, 21768754, 31098220, 43537508, 54421885, 108843770, 217687540]

約数ペア:

[(1, 217687540), (2, 108843770), (4, 54421885), (5, 43537508), (7, 31098220), (10, 21768754), (14, 15549110), (20, 10884377), (28, 7774555), (35, 6219644), (70, 3109822), (140, 1554911), (887, 245420), (1753, 124180), (1774, 122710), (3506, 62090), (3548, 61355), (4435, 49084), (6209, 35060), (7012, 31045), (8765, 24836), (8870, 24542), (12271, 17740), (12418, 17530)]