80978220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449879}}^1$

素因数の和:449894

約数の個数: 36

約数和(自身を含む): 245634480

約数和(自身を除く): 164656260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449879, 899758, 1349637, 1799516, 2249395, 2699274, 4048911, 4498790, 5398548, 6748185, 8097822, 8997580, 13496370, 16195644, 20244555, 26992740, 40489110, 80978220]

約数ペア:

[(1, 80978220), (2, 40489110), (3, 26992740), (4, 20244555), (5, 16195644), (6, 13496370), (9, 8997580), (10, 8097822), (12, 6748185), (15, 5398548), (18, 4498790), (20, 4048911), (30, 2699274), (36, 2249395), (45, 1799516), (60, 1349637), (90, 899758), (180, 449879)]