128805840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{178897}}^1$

素因数の和:178916

約数の個数: 60

約数和(自身を含む): 432575364

約数和(自身を除く): 303769524

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 178897, 357794, 536691, 715588, 894485, 1073382, 1431176, 1610073, 1788970, 2146764, 2683455, 2862352, 3220146, 3577940, 4293528, 5366910, 6440292, 7155880, 8050365, 8587056, 10733820, 12880584, 14311760, 16100730, 21467640, 25761168, 32201460, 42935280, 64402920, 128805840]

約数ペア:

[(1, 128805840), (2, 64402920), (3, 42935280), (4, 32201460), (5, 25761168), (6, 21467640), (8, 16100730), (9, 14311760), (10, 12880584), (12, 10733820), (15, 8587056), (16, 8050365), (18, 7155880), (20, 6440292), (24, 5366910), (30, 4293528), (36, 3577940), (40, 3220146), (45, 2862352), (48, 2683455), (60, 2146764), (72, 1788970), (80, 1610073), (90, 1431176), (120, 1073382), (144, 894485), (180, 715588), (240, 536691), (360, 357794), (720, 178897)]