13951480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 33022080

約数和(自身を除く): 19070600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 47, 82, 94, 164, 181, 188, 205, 235, 328, 362, 376, 410, 470, 724, 820, 905, 940, 1448, 1640, 1810, 1880, 1927, 3620, 3854, 7240, 7421, 7708, 8507, 9635, 14842, 15416, 17014, 19270, 29684, 34028, 37105, 38540, 42535, 59368, 68056, 74210, 77080, 85070, 148420, 170140, 296840, 340280, 348787, 697574, 1395148, 1743935, 2790296, 3487870, 6975740, 13951480]

約数ペア:

[(1, 13951480), (2, 6975740), (4, 3487870), (5, 2790296), (8, 1743935), (10, 1395148), (20, 697574), (40, 348787), (41, 340280), (47, 296840), (82, 170140), (94, 148420), (164, 85070), (181, 77080), (188, 74210), (205, 68056), (235, 59368), (328, 42535), (362, 38540), (376, 37105), (410, 34028), (470, 29684), (724, 19270), (820, 17014), (905, 15416), (940, 14842), (1448, 9635), (1640, 8507), (1810, 7708), (1880, 7421), (1927, 7240), (3620, 3854)]