399745008

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{213539}}^1$

素因数の和:213566

約数の個数: 60

約数和(自身を含む): 1204792680

約数和(自身を除く): 805047672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 213539, 427078, 640617, 854156, 1281234, 1708312, 1921851, 2562468, 2776007, 3416624, 3843702, 5124936, 5552014, 7687404, 8328021, 10249872, 11104028, 15374808, 16656042, 22208056, 24984063, 30749616, 33312084, 44416112, 49968126, 66624168, 99936252, 133248336, 199872504, 399745008]

約数ペア:

[(1, 399745008), (2, 199872504), (3, 133248336), (4, 99936252), (6, 66624168), (8, 49968126), (9, 44416112), (12, 33312084), (13, 30749616), (16, 24984063), (18, 22208056), (24, 16656042), (26, 15374808), (36, 11104028), (39, 10249872), (48, 8328021), (52, 7687404), (72, 5552014), (78, 5124936), (104, 3843702), (117, 3416624), (144, 2776007), (156, 2562468), (208, 1921851), (234, 1708312), (312, 1281234), (468, 854156), (624, 640617), (936, 427078), (1872, 213539)]