20632880

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{739}}^1$

素因数の和:1101

約数の個数: 40

約数和(自身を含む): 48174000

約数和(自身を除く): 27541120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 739, 1396, 1478, 1745, 2792, 2956, 3490, 3695, 5584, 5912, 6980, 7390, 11824, 13960, 14780, 27920, 29560, 59120, 257911, 515822, 1031644, 1289555, 2063288, 2579110, 4126576, 5158220, 10316440, 20632880]

約数ペア:

[(1, 20632880), (2, 10316440), (4, 5158220), (5, 4126576), (8, 2579110), (10, 2063288), (16, 1289555), (20, 1031644), (40, 515822), (80, 257911), (349, 59120), (698, 29560), (739, 27920), (1396, 14780), (1478, 13960), (1745, 11824), (2792, 7390), (2956, 6980), (3490, 5912), (3695, 5584)]