1278131871

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1\times {\mathrm{373}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 1772508672

約数和(自身を除く): 494376801

約数列:

[1, 3, 43, 101, 129, 263, 303, 373, 789, 1119, 4343, 11309, 13029, 16039, 26563, 33927, 37673, 48117, 79689, 98099, 113019, 294297, 1142209, 1619939, 3426627, 4218257, 4859817, 9907999, 12654771, 29723997, 426043957, 1278131871]

約数ペア:

[(1, 1278131871), (3, 426043957), (43, 29723997), (101, 12654771), (129, 9907999), (263, 4859817), (303, 4218257), (373, 3426627), (789, 1619939), (1119, 1142209), (4343, 294297), (11309, 113019), (13029, 98099), (16039, 79689), (26563, 48117), (33927, 37673)]