218028520

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 499322880

約数和(自身を除く): 281294360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 167, 254, 257, 334, 508, 514, 635, 668, 835, 1016, 1028, 1270, 1285, 1336, 1670, 2056, 2540, 2570, 3340, 5080, 5140, 6680, 10280, 21209, 32639, 42418, 42919, 65278, 84836, 85838, 106045, 130556, 163195, 169672, 171676, 212090, 214595, 261112, 326390, 343352, 424180, 429190, 652780, 848360, 858380, 1305560, 1716760, 5450713, 10901426, 21802852, 27253565, 43605704, 54507130, 109014260, 218028520]

約数ペア:

[(1, 218028520), (2, 109014260), (4, 54507130), (5, 43605704), (8, 27253565), (10, 21802852), (20, 10901426), (40, 5450713), (127, 1716760), (167, 1305560), (254, 858380), (257, 848360), (334, 652780), (508, 429190), (514, 424180), (635, 343352), (668, 326390), (835, 261112), (1016, 214595), (1028, 212090), (1270, 171676), (1285, 169672), (1336, 163195), (1670, 130556), (2056, 106045), (2540, 85838), (2570, 84836), (3340, 65278), (5080, 42919), (5140, 42418), (6680, 32639), (10280, 21209)]