31389828

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 75694080

約数和(自身を除く): 44304252

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 127, 129, 172, 254, 258, 381, 479, 508, 516, 762, 958, 1437, 1524, 1916, 2874, 5461, 5748, 10922, 16383, 20597, 21844, 32766, 41194, 60833, 61791, 65532, 82388, 121666, 123582, 182499, 243332, 247164, 364998, 729996, 2615819, 5231638, 7847457, 10463276, 15694914, 31389828]

約数ペア:

[(1, 31389828), (2, 15694914), (3, 10463276), (4, 7847457), (6, 5231638), (12, 2615819), (43, 729996), (86, 364998), (127, 247164), (129, 243332), (172, 182499), (254, 123582), (258, 121666), (381, 82388), (479, 65532), (508, 61791), (516, 60833), (762, 41194), (958, 32766), (1437, 21844), (1524, 20597), (1916, 16383), (2874, 10922), (5461, 5748)]