401894985

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{27091}}^1$

素因数の和:27165

約数の個数: 32

約数和(自身を含む): 686619648

約数和(自身を除く): 284724663

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 2967, 4945, 14835, 27091, 81273, 135455, 406365, 623093, 1164913, 1869279, 3115465, 3494739, 5824565, 9346395, 17473695, 26792999, 80378997, 133964995, 401894985]

約数ペア:

[(1, 401894985), (3, 133964995), (5, 80378997), (15, 26792999), (23, 17473695), (43, 9346395), (69, 5824565), (115, 3494739), (129, 3115465), (215, 1869279), (345, 1164913), (645, 623093), (989, 406365), (2967, 135455), (4945, 81273), (14835, 27091)]