8347240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 20891520

約数和(自身を除く): 12544280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 311, 440, 488, 610, 622, 671, 1220, 1244, 1342, 1555, 2440, 2488, 2684, 3110, 3355, 3421, 5368, 6220, 6710, 6842, 12440, 13420, 13684, 17105, 18971, 26840, 27368, 34210, 37942, 68420, 75884, 94855, 136840, 151768, 189710, 208681, 379420, 417362, 758840, 834724, 1043405, 1669448, 2086810, 4173620, 8347240]

約数ペア:

[(1, 8347240), (2, 4173620), (4, 2086810), (5, 1669448), (8, 1043405), (10, 834724), (11, 758840), (20, 417362), (22, 379420), (40, 208681), (44, 189710), (55, 151768), (61, 136840), (88, 94855), (110, 75884), (122, 68420), (220, 37942), (244, 34210), (305, 27368), (311, 26840), (440, 18971), (488, 17105), (610, 13684), (622, 13420), (671, 12440), (1220, 6842), (1244, 6710), (1342, 6220), (1555, 5368), (2440, 3421), (2488, 3355), (2684, 3110)]