256678056

素因数分解:

$2^3\times 3^2\times {\mathrm{163}}^1\times {\mathrm{21871}}^1$

素因数の和:22046

約数の個数: 48

約数和(自身を含む): 699466560

約数和(自身を除く): 442788504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 163, 326, 489, 652, 978, 1304, 1467, 1956, 2934, 3912, 5868, 11736, 21871, 43742, 65613, 87484, 131226, 174968, 196839, 262452, 393678, 524904, 787356, 1574712, 3564973, 7129946, 10694919, 14259892, 21389838, 28519784, 32084757, 42779676, 64169514, 85559352, 128339028, 256678056]

約数ペア:

[(1, 256678056), (2, 128339028), (3, 85559352), (4, 64169514), (6, 42779676), (8, 32084757), (9, 28519784), (12, 21389838), (18, 14259892), (24, 10694919), (36, 7129946), (72, 3564973), (163, 1574712), (326, 787356), (489, 524904), (652, 393678), (978, 262452), (1304, 196839), (1467, 174968), (1956, 131226), (2934, 87484), (3912, 65613), (5868, 43742), (11736, 21871)]