123878980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{479}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 265950720

約数和(自身を除く): 142071740

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 193, 268, 335, 386, 479, 670, 772, 958, 965, 1340, 1916, 1930, 2395, 3860, 4790, 9580, 12931, 25862, 32093, 51724, 64186, 64655, 92447, 128372, 129310, 160465, 184894, 258620, 320930, 369788, 462235, 641860, 924470, 1848940, 6193949, 12387898, 24775796, 30969745, 61939490, 123878980]

約数ペア:

[(1, 123878980), (2, 61939490), (4, 30969745), (5, 24775796), (10, 12387898), (20, 6193949), (67, 1848940), (134, 924470), (193, 641860), (268, 462235), (335, 369788), (386, 320930), (479, 258620), (670, 184894), (772, 160465), (958, 129310), (965, 128372), (1340, 92447), (1916, 64655), (1930, 64186), (2395, 51724), (3860, 32093), (4790, 25862), (9580, 12931)]