245297920

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{3911}}^1$

素因数の和:3946

約数の個数: 108

約数和(自身を含む): 683668944

約数和(自身を除く): 438371024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 3136, 3911, 3920, 4480, 6272, 7822, 7840, 8960, 12544, 15644, 15680, 19555, 27377, 31288, 31360, 39110, 54754, 62576, 62720, 78220, 109508, 125152, 136885, 156440, 191639, 219016, 250304, 273770, 312880, 383278, 438032, 500608, 547540, 625760, 766556, 876064, 958195, 1001216, 1095080, 1251520, 1533112, 1752128, 1916390, 2190160, 2503040, 3066224, 3504256, 3832780, 4380320, 5006080, 6132448, 7008512, 7665560, 8760640, 12264896, 15331120, 17521280, 24529792, 30662240, 35042560, 49059584, 61324480, 122648960, 245297920]

約数ペア:

[(1, 245297920), (2, 122648960), (4, 61324480), (5, 49059584), (7, 35042560), (8, 30662240), (10, 24529792), (14, 17521280), (16, 15331120), (20, 12264896), (28, 8760640), (32, 7665560), (35, 7008512), (40, 6132448), (49, 5006080), (56, 4380320), (64, 3832780), (70, 3504256), (80, 3066224), (98, 2503040), (112, 2190160), (128, 1916390), (140, 1752128), (160, 1533112), (196, 1251520), (224, 1095080), (245, 1001216), (256, 958195), (280, 876064), (320, 766556), (392, 625760), (448, 547540), (490, 500608), (560, 438032), (640, 383278), (784, 312880), (896, 273770), (980, 250304), (1120, 219016), (1280, 191639), (1568, 156440), (1792, 136885), (1960, 125152), (2240, 109508), (3136, 78220), (3911, 62720), (3920, 62576), (4480, 54754), (6272, 39110), (7822, 31360), (7840, 31288), (8960, 27377), (12544, 19555), (15644, 15680)]