2020777040

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{283817}}^1$

素因数の和:283919

約数の個数: 40

約数和(自身を含む): 4751113320

約数和(自身を除く): 2730336280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 283817, 567634, 1135268, 1419085, 2270536, 2838170, 4541072, 5676340, 11352680, 22705360, 25259713, 50519426, 101038852, 126298565, 202077704, 252597130, 404155408, 505194260, 1010388520, 2020777040]

約数ペア:

[(1, 2020777040), (2, 1010388520), (4, 505194260), (5, 404155408), (8, 252597130), (10, 202077704), (16, 126298565), (20, 101038852), (40, 50519426), (80, 25259713), (89, 22705360), (178, 11352680), (356, 5676340), (445, 4541072), (712, 2838170), (890, 2270536), (1424, 1419085), (1780, 1135268), (3560, 567634), (7120, 283817)]