20160918974

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{70381}}^1$

素因数の和:70513

約数の個数: 48

約数和(自身を含む): 36587378880

約数和(自身を除く): 16426459906

約数列:

[1, 2, 7, 14, 37, 49, 74, 79, 98, 158, 259, 518, 553, 1106, 1813, 2923, 3626, 3871, 5846, 7742, 20461, 40922, 70381, 140762, 143227, 286454, 492667, 985334, 2604097, 3448669, 5208194, 5560099, 6897338, 11120198, 18228679, 36457358, 38920693, 77841386, 127600753, 205723663, 255201506, 272444851, 411447326, 544889702, 1440065641, 2880131282, 10080459487, 20160918974]

約数ペア:

[(1, 20160918974), (2, 10080459487), (7, 2880131282), (14, 1440065641), (37, 544889702), (49, 411447326), (74, 272444851), (79, 255201506), (98, 205723663), (158, 127600753), (259, 77841386), (518, 38920693), (553, 36457358), (1106, 18228679), (1813, 11120198), (2923, 6897338), (3626, 5560099), (3871, 5208194), (5846, 3448669), (7742, 2604097), (20461, 985334), (40922, 492667), (70381, 286454), (140762, 143227)]