279480320

素因数分解:

$2^{11}\times 5^1\times 7^2\times {\mathrm{557}}^1$

素因数の和:598

約数の個数: 144

約数和(自身を含む): 781473420

約数和(自身を除く): 501993100

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, 512, 557, 560, 640, 784, 896, 980, 1024, 1114, 1120, 1280, 1568, 1792, 1960, 2048, 2228, 2240, 2560, 2785, 3136, 3584, 3899, 3920, 4456, 4480, 5120, 5570, 6272, 7168, 7798, 7840, 8912, 8960, 10240, 11140, 12544, 14336, 15596, 15680, 17824, 17920, 19495, 22280, 25088, 27293, 31192, 31360, 35648, 35840, 38990, 44560, 50176, 54586, 62384, 62720, 71296, 71680, 77980, 89120, 100352, 109172, 124768, 125440, 136465, 142592, 155960, 178240, 218344, 249536, 250880, 272930, 285184, 311920, 356480, 436688, 499072, 501760, 545860, 570368, 623840, 712960, 873376, 998144, 1091720, 1140736, 1247680, 1425920, 1746752, 1996288, 2183440, 2495360, 2851840, 3493504, 3992576, 4366880, 4990720, 5703680, 6987008, 7985152, 8733760, 9981440, 13974016, 17467520, 19962880, 27948032, 34935040, 39925760, 55896064, 69870080, 139740160, 279480320]

約数ペア:

[(1, 279480320), (2, 139740160), (4, 69870080), (5, 55896064), (7, 39925760), (8, 34935040), (10, 27948032), (14, 19962880), (16, 17467520), (20, 13974016), (28, 9981440), (32, 8733760), (35, 7985152), (40, 6987008), (49, 5703680), (56, 4990720), (64, 4366880), (70, 3992576), (80, 3493504), (98, 2851840), (112, 2495360), (128, 2183440), (140, 1996288), (160, 1746752), (196, 1425920), (224, 1247680), (245, 1140736), (256, 1091720), (280, 998144), (320, 873376), (392, 712960), (448, 623840), (490, 570368), (512, 545860), (557, 501760), (560, 499072), (640, 436688), (784, 356480), (896, 311920), (980, 285184), (1024, 272930), (1114, 250880), (1120, 249536), (1280, 218344), (1568, 178240), (1792, 155960), (1960, 142592), (2048, 136465), (2228, 125440), (2240, 124768), (2560, 109172), (2785, 100352), (3136, 89120), (3584, 77980), (3899, 71680), (3920, 71296), (4456, 62720), (4480, 62384), (5120, 54586), (5570, 50176), (6272, 44560), (7168, 38990), (7798, 35840), (7840, 35648), (8912, 31360), (8960, 31192), (10240, 27293), (11140, 25088), (12544, 22280), (14336, 19495), (15596, 17920), (15680, 17824)]