256446400

素因数分解:

$2^6\times 5^2\times 7^2\times {\mathrm{3271}}^1$

素因数の和:3307

約数の個数: 126

約数和(自身を含む): 734266248

約数和(自身を除く): 477819848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 140, 160, 175, 196, 200, 224, 245, 280, 320, 350, 392, 400, 448, 490, 560, 700, 784, 800, 980, 1120, 1225, 1400, 1568, 1600, 1960, 2240, 2450, 2800, 3136, 3271, 3920, 4900, 5600, 6542, 7840, 9800, 11200, 13084, 15680, 16355, 19600, 22897, 26168, 32710, 39200, 45794, 52336, 65420, 78400, 81775, 91588, 104672, 114485, 130840, 160279, 163550, 183176, 209344, 228970, 261680, 320558, 327100, 366352, 457940, 523360, 572425, 641116, 654200, 732704, 801395, 915880, 1046720, 1144850, 1282232, 1308400, 1465408, 1602790, 1831760, 2289700, 2564464, 2616800, 3205580, 3663520, 4006975, 4579400, 5128928, 5233600, 6411160, 7327040, 8013950, 9158800, 10257856, 12822320, 16027900, 18317600, 25644640, 32055800, 36635200, 51289280, 64111600, 128223200, 256446400]

約数ペア:

[(1, 256446400), (2, 128223200), (4, 64111600), (5, 51289280), (7, 36635200), (8, 32055800), (10, 25644640), (14, 18317600), (16, 16027900), (20, 12822320), (25, 10257856), (28, 9158800), (32, 8013950), (35, 7327040), (40, 6411160), (49, 5233600), (50, 5128928), (56, 4579400), (64, 4006975), (70, 3663520), (80, 3205580), (98, 2616800), (100, 2564464), (112, 2289700), (140, 1831760), (160, 1602790), (175, 1465408), (196, 1308400), (200, 1282232), (224, 1144850), (245, 1046720), (280, 915880), (320, 801395), (350, 732704), (392, 654200), (400, 641116), (448, 572425), (490, 523360), (560, 457940), (700, 366352), (784, 327100), (800, 320558), (980, 261680), (1120, 228970), (1225, 209344), (1400, 183176), (1568, 163550), (1600, 160279), (1960, 130840), (2240, 114485), (2450, 104672), (2800, 91588), (3136, 81775), (3271, 78400), (3920, 65420), (4900, 52336), (5600, 45794), (6542, 39200), (7840, 32710), (9800, 26168), (11200, 22897), (13084, 19600), (15680, 16355)]