721901412

素因数分解:

$2^2\times 3^2\times {\mathrm{239}}^1\times {\mathrm{83903}}^1$

素因数の和:84152

約数の個数: 36

約数和(自身を含む): 1832463360

約数和(自身を除く): 1110561948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 239, 478, 717, 956, 1434, 2151, 2868, 4302, 8604, 83903, 167806, 251709, 335612, 503418, 755127, 1006836, 1510254, 3020508, 20052817, 40105634, 60158451, 80211268, 120316902, 180475353, 240633804, 360950706, 721901412]

約数ペア:

[(1, 721901412), (2, 360950706), (3, 240633804), (4, 180475353), (6, 120316902), (9, 80211268), (12, 60158451), (18, 40105634), (36, 20052817), (239, 3020508), (478, 1510254), (717, 1006836), (956, 755127), (1434, 503418), (2151, 335612), (2868, 251709), (4302, 167806), (8604, 83903)]