280005840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{388897}}^1$

素因数の和:388916

約数の個数: 60

約数和(自身を含む): 940355364

約数和(自身を除く): 660349524

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, 388897, 777794, 1166691, 1555588, 1944485, 2333382, 3111176, 3500073, 3888970, 4666764, 5833455, 6222352, 7000146, 7777940, 9333528, 11666910, 14000292, 15555880, 17500365, 18667056, 23333820, 28000584, 31111760, 35000730, 46667640, 56001168, 70001460, 93335280, 140002920, 280005840]

約数ペア:

[(1, 280005840), (2, 140002920), (3, 93335280), (4, 70001460), (5, 56001168), (6, 46667640), (8, 35000730), (9, 31111760), (10, 28000584), (12, 23333820), (15, 18667056), (16, 17500365), (18, 15555880), (20, 14000292), (24, 11666910), (30, 9333528), (36, 7777940), (40, 7000146), (45, 6222352), (48, 5833455), (60, 4666764), (72, 3888970), (80, 3500073), (90, 3111176), (120, 2333382), (144, 1944485), (180, 1555588), (240, 1166691), (360, 777794), (720, 388897)]