81884268

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{307}}^1$

素因数の和:587

約数の個数: 72

約数和(自身を含む): 215255040

約数和(自身を除く): 133370772

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 239, 279, 307, 372, 478, 558, 614, 717, 921, 956, 1116, 1228, 1434, 1842, 2151, 2763, 2868, 3684, 4302, 5526, 7409, 8604, 9517, 11052, 14818, 19034, 22227, 28551, 29636, 38068, 44454, 57102, 66681, 73373, 85653, 88908, 114204, 133362, 146746, 171306, 220119, 266724, 293492, 342612, 440238, 660357, 880476, 1320714, 2274563, 2641428, 4549126, 6823689, 9098252, 13647378, 20471067, 27294756, 40942134, 81884268]

約数ペア:

[(1, 81884268), (2, 40942134), (3, 27294756), (4, 20471067), (6, 13647378), (9, 9098252), (12, 6823689), (18, 4549126), (31, 2641428), (36, 2274563), (62, 1320714), (93, 880476), (124, 660357), (186, 440238), (239, 342612), (279, 293492), (307, 266724), (372, 220119), (478, 171306), (558, 146746), (614, 133362), (717, 114204), (921, 88908), (956, 85653), (1116, 73373), (1228, 66681), (1434, 57102), (1842, 44454), (2151, 38068), (2763, 29636), (2868, 28551), (3684, 22227), (4302, 19034), (5526, 14818), (7409, 11052), (8604, 9517)]