256270404

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{86461}}^1$

素因数の和:86500

約数の個数: 48

約数和(自身を含む): 677862080

約数和(自身を除く): 421591676

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 86461, 172922, 259383, 345844, 518766, 1037532, 1123993, 1642759, 2247986, 3285518, 3371979, 4495972, 4928277, 6571036, 6743958, 9856554, 13487916, 19713108, 21355867, 42711734, 64067601, 85423468, 128135202, 256270404]

約数ペア:

[(1, 256270404), (2, 128135202), (3, 85423468), (4, 64067601), (6, 42711734), (12, 21355867), (13, 19713108), (19, 13487916), (26, 9856554), (38, 6743958), (39, 6571036), (52, 4928277), (57, 4495972), (76, 3371979), (78, 3285518), (114, 2247986), (156, 1642759), (228, 1123993), (247, 1037532), (494, 518766), (741, 345844), (988, 259383), (1482, 172922), (2964, 86461)]