251256320

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{2003}}^1$

素因数の和:2040

約数の個数: 120

約数和(自身を含む): 701131464

約数和(自身を除く): 449875144

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, 2003, 2240, 2560, 3136, 3584, 3920, 4006, 4480, 6272, 7840, 8012, 8960, 10015, 12544, 14021, 15680, 16024, 17920, 20030, 25088, 28042, 31360, 32048, 40060, 56084, 62720, 64096, 70105, 80120, 98147, 112168, 125440, 128192, 140210, 160240, 196294, 224336, 256384, 280420, 320480, 392588, 448672, 490735, 512768, 560840, 640960, 785176, 897344, 981470, 1025536, 1121680, 1281920, 1570352, 1794688, 1962940, 2243360, 2563840, 3140704, 3589376, 3925880, 4486720, 5127680, 6281408, 7178752, 7851760, 8973440, 12562816, 15703520, 17946880, 25125632, 31407040, 35893760, 50251264, 62814080, 125628160, 251256320]

約数ペア:

[(1, 251256320), (2, 125628160), (4, 62814080), (5, 50251264), (7, 35893760), (8, 31407040), (10, 25125632), (14, 17946880), (16, 15703520), (20, 12562816), (28, 8973440), (32, 7851760), (35, 7178752), (40, 6281408), (49, 5127680), (56, 4486720), (64, 3925880), (70, 3589376), (80, 3140704), (98, 2563840), (112, 2243360), (128, 1962940), (140, 1794688), (160, 1570352), (196, 1281920), (224, 1121680), (245, 1025536), (256, 981470), (280, 897344), (320, 785176), (392, 640960), (448, 560840), (490, 512768), (512, 490735), (560, 448672), (640, 392588), (784, 320480), (896, 280420), (980, 256384), (1120, 224336), (1280, 196294), (1568, 160240), (1792, 140210), (1960, 128192), (2003, 125440), (2240, 112168), (2560, 98147), (3136, 80120), (3584, 70105), (3920, 64096), (4006, 62720), (4480, 56084), (6272, 40060), (7840, 32048), (8012, 31360), (8960, 28042), (10015, 25088), (12544, 20030), (14021, 17920), (15680, 16024)]