201326720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{44939}}^1$

素因数の和:44965

約数の個数: 64

約数和(自身を含む): 550065600

約数和(自身を除く): 348738880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 44939, 89878, 179756, 224695, 314573, 359512, 449390, 629146, 719024, 898780, 1258292, 1438048, 1572865, 1797560, 2516584, 2876096, 3145730, 3595120, 5033168, 5752192, 6291460, 7190240, 10066336, 12582920, 14380480, 20132672, 25165840, 28760960, 40265344, 50331680, 100663360, 201326720]

約数ペア:

[(1, 201326720), (2, 100663360), (4, 50331680), (5, 40265344), (7, 28760960), (8, 25165840), (10, 20132672), (14, 14380480), (16, 12582920), (20, 10066336), (28, 7190240), (32, 6291460), (35, 5752192), (40, 5033168), (56, 3595120), (64, 3145730), (70, 2876096), (80, 2516584), (112, 1797560), (128, 1572865), (140, 1438048), (160, 1258292), (224, 898780), (280, 719024), (320, 629146), (448, 449390), (560, 359512), (640, 314573), (896, 224695), (1120, 179756), (2240, 89878), (4480, 44939)]