1278989838

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{1127857}}^1$

素因数の和:1127878

約数の個数: 40

約数和(自身を含む): 3275299632

約数和(自身を除く): 1996309794

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 1127857, 2255714, 3383571, 6767142, 7894999, 10150713, 15789998, 20301426, 23684997, 30452139, 47369994, 60904278, 71054991, 91356417, 142109982, 182712834, 213164973, 426329946, 639494919, 1278989838]

約数ペア:

[(1, 1278989838), (2, 639494919), (3, 426329946), (6, 213164973), (7, 182712834), (9, 142109982), (14, 91356417), (18, 71054991), (21, 60904278), (27, 47369994), (42, 30452139), (54, 23684997), (63, 20301426), (81, 15789998), (126, 10150713), (162, 7894999), (189, 6767142), (378, 3383571), (567, 2255714), (1134, 1127857)]