280327040

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{1277}}^1$

素因数の和:1317

約数の個数: 128

約数和(自身を含む): 782136000

約数和(自身を除く): 501808960

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, 280, 320, 343, 392, 448, 490, 560, 640, 686, 784, 896, 980, 1120, 1277, 1372, 1568, 1715, 1960, 2240, 2554, 2744, 3136, 3430, 3920, 4480, 5108, 5488, 6272, 6385, 6860, 7840, 8939, 10216, 10976, 12770, 13720, 15680, 17878, 20432, 21952, 25540, 27440, 31360, 35756, 40864, 43904, 44695, 51080, 54880, 62573, 71512, 81728, 89390, 102160, 109760, 125146, 143024, 163456, 178780, 204320, 219520, 250292, 286048, 312865, 357560, 408640, 438011, 500584, 572096, 625730, 715120, 817280, 876022, 1001168, 1144192, 1251460, 1430240, 1752044, 2002336, 2190055, 2502920, 2860480, 3504088, 4004672, 4380110, 5005840, 5720960, 7008176, 8009344, 8760220, 10011680, 14016352, 17520440, 20023360, 28032704, 35040880, 40046720, 56065408, 70081760, 140163520, 280327040]

約数ペア:

[(1, 280327040), (2, 140163520), (4, 70081760), (5, 56065408), (7, 40046720), (8, 35040880), (10, 28032704), (14, 20023360), (16, 17520440), (20, 14016352), (28, 10011680), (32, 8760220), (35, 8009344), (40, 7008176), (49, 5720960), (56, 5005840), (64, 4380110), (70, 4004672), (80, 3504088), (98, 2860480), (112, 2502920), (128, 2190055), (140, 2002336), (160, 1752044), (196, 1430240), (224, 1251460), (245, 1144192), (280, 1001168), (320, 876022), (343, 817280), (392, 715120), (448, 625730), (490, 572096), (560, 500584), (640, 438011), (686, 408640), (784, 357560), (896, 312865), (980, 286048), (1120, 250292), (1277, 219520), (1372, 204320), (1568, 178780), (1715, 163456), (1960, 143024), (2240, 125146), (2554, 109760), (2744, 102160), (3136, 89390), (3430, 81728), (3920, 71512), (4480, 62573), (5108, 54880), (5488, 51080), (6272, 44695), (6385, 43904), (6860, 40864), (7840, 35756), (8939, 31360), (10216, 27440), (10976, 25540), (12770, 21952), (13720, 20432), (15680, 17878)]