399800799

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 640442880

約数和(自身を除く): 240642081

約数列:

[1, 3, 9, 27, 37, 41, 43, 111, 123, 129, 227, 333, 369, 387, 681, 999, 1107, 1161, 1517, 1591, 1763, 2043, 4551, 4773, 5289, 6129, 8399, 9307, 9761, 13653, 14319, 15867, 25197, 27921, 29283, 40959, 42957, 47601, 65231, 75591, 83763, 87849, 195693, 226773, 251289, 263547, 344359, 361157, 400201, 587079, 1033077, 1083471, 1200603, 1761237, 3099231, 3250413, 3601809, 9297693, 9751239, 10805427, 14807437, 44422311, 133266933, 399800799]

約数ペア:

[(1, 399800799), (3, 133266933), (9, 44422311), (27, 14807437), (37, 10805427), (41, 9751239), (43, 9297693), (111, 3601809), (123, 3250413), (129, 3099231), (227, 1761237), (333, 1200603), (369, 1083471), (387, 1033077), (681, 587079), (999, 400201), (1107, 361157), (1161, 344359), (1517, 263547), (1591, 251289), (1763, 226773), (2043, 195693), (4551, 87849), (4773, 83763), (5289, 75591), (6129, 65231), (8399, 47601), (9307, 42957), (9761, 40959), (13653, 29283), (14319, 27921), (15867, 25197)]