399741412

素因数分解:

$2^2\times 7^2\times {\mathrm{173}}^1\times {\mathrm{11789}}^1$

素因数の和:11980

約数の個数: 36

約数和(自身を含む): 818532540

約数和(自身を除く): 418791128

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 173, 196, 346, 692, 1211, 2422, 4844, 8477, 11789, 16954, 23578, 33908, 47156, 82523, 165046, 330092, 577661, 1155322, 2039497, 2310644, 4078994, 8157988, 14276479, 28552958, 57105916, 99935353, 199870706, 399741412]

約数ペア:

[(1, 399741412), (2, 199870706), (4, 99935353), (7, 57105916), (14, 28552958), (28, 14276479), (49, 8157988), (98, 4078994), (173, 2310644), (196, 2039497), (346, 1155322), (692, 577661), (1211, 330092), (2422, 165046), (4844, 82523), (8477, 47156), (11789, 33908), (16954, 23578)]