71988660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{399937}}^1$

素因数の和:399952

約数の個数: 36

約数和(自身を含む): 218366148

約数和(自身を除く): 146377488

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 399937, 799874, 1199811, 1599748, 1999685, 2399622, 3599433, 3999370, 4799244, 5999055, 7198866, 7998740, 11998110, 14397732, 17997165, 23996220, 35994330, 71988660]

約数ペア:

[(1, 71988660), (2, 35994330), (3, 23996220), (4, 17997165), (5, 14397732), (6, 11998110), (9, 7998740), (10, 7198866), (12, 5999055), (15, 4799244), (18, 3999370), (20, 3599433), (30, 2399622), (36, 1999685), (45, 1599748), (60, 1199811), (90, 799874), (180, 399937)]