278602240

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{2221}}^1$

素因数の和:2258

約数の個数: 120

約数和(自身を含む): 777402252

約数和(自身を除く): 498800012

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, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2221, 2240, 2560, 3136, 3584, 3920, 4442, 4480, 6272, 7840, 8884, 8960, 11105, 12544, 15547, 15680, 17768, 17920, 22210, 25088, 31094, 31360, 35536, 44420, 62188, 62720, 71072, 77735, 88840, 108829, 124376, 125440, 142144, 155470, 177680, 217658, 248752, 284288, 310940, 355360, 435316, 497504, 544145, 568576, 621880, 710720, 870632, 995008, 1088290, 1137152, 1243760, 1421440, 1741264, 1990016, 2176580, 2487520, 2842880, 3482528, 3980032, 4353160, 4975040, 5685760, 6965056, 7960064, 8706320, 9950080, 13930112, 17412640, 19900160, 27860224, 34825280, 39800320, 55720448, 69650560, 139301120, 278602240]

約数ペア:

[(1, 278602240), (2, 139301120), (4, 69650560), (5, 55720448), (7, 39800320), (8, 34825280), (10, 27860224), (14, 19900160), (16, 17412640), (20, 13930112), (28, 9950080), (32, 8706320), (35, 7960064), (40, 6965056), (49, 5685760), (56, 4975040), (64, 4353160), (70, 3980032), (80, 3482528), (98, 2842880), (112, 2487520), (128, 2176580), (140, 1990016), (160, 1741264), (196, 1421440), (224, 1243760), (245, 1137152), (256, 1088290), (280, 995008), (320, 870632), (392, 710720), (448, 621880), (490, 568576), (512, 544145), (560, 497504), (640, 435316), (784, 355360), (896, 310940), (980, 284288), (1120, 248752), (1280, 217658), (1568, 177680), (1792, 155470), (1960, 142144), (2221, 125440), (2240, 124376), (2560, 108829), (3136, 88840), (3584, 77735), (3920, 71072), (4442, 62720), (4480, 62188), (6272, 44420), (7840, 35536), (8884, 31360), (8960, 31094), (11105, 25088), (12544, 22210), (15547, 17920), (15680, 17768)]