788763980

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1\times {\mathrm{1609}}^1$

素因数の和:1938

約数の個数: 48

約数和(自身を含む): 1679139840

約数和(自身を除く): 890375860

約数列:

[1, 2, 4, 5, 10, 20, 127, 193, 254, 386, 508, 635, 772, 965, 1270, 1609, 1930, 2540, 3218, 3860, 6436, 8045, 16090, 24511, 32180, 49022, 98044, 122555, 204343, 245110, 310537, 408686, 490220, 621074, 817372, 1021715, 1242148, 1552685, 2043430, 3105370, 4086860, 6210740, 39438199, 78876398, 157752796, 197190995, 394381990, 788763980]

約数ペア:

[(1, 788763980), (2, 394381990), (4, 197190995), (5, 157752796), (10, 78876398), (20, 39438199), (127, 6210740), (193, 4086860), (254, 3105370), (386, 2043430), (508, 1552685), (635, 1242148), (772, 1021715), (965, 817372), (1270, 621074), (1609, 490220), (1930, 408686), (2540, 310537), (3218, 245110), (3860, 204343), (6436, 122555), (8045, 98044), (16090, 49022), (24511, 32180)]