251248480

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{439}}^1$

素因数の和:541

約数の個数: 144

約数和(自身を含む): 701537760

約数和(自身を除く): 450289280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 73, 80, 98, 112, 140, 146, 160, 196, 224, 245, 280, 292, 365, 392, 439, 490, 511, 560, 584, 730, 784, 878, 980, 1022, 1120, 1168, 1460, 1568, 1756, 1960, 2044, 2195, 2336, 2555, 2920, 3073, 3512, 3577, 3920, 4088, 4390, 5110, 5840, 6146, 7024, 7154, 7840, 8176, 8780, 10220, 11680, 12292, 14048, 14308, 15365, 16352, 17560, 17885, 20440, 21511, 24584, 28616, 30730, 32047, 35120, 35770, 40880, 43022, 49168, 57232, 61460, 64094, 70240, 71540, 81760, 86044, 98336, 107555, 114464, 122920, 128188, 143080, 160235, 172088, 215110, 224329, 245840, 256376, 286160, 320470, 344176, 430220, 448658, 491680, 512752, 572320, 640940, 688352, 860440, 897316, 1025504, 1121645, 1281880, 1570303, 1720880, 1794632, 2243290, 2563760, 3140606, 3441760, 3589264, 4486580, 5127520, 6281212, 7178528, 7851515, 8973160, 12562424, 15703030, 17946320, 25124848, 31406060, 35892640, 50249696, 62812120, 125624240, 251248480]

約数ペア:

[(1, 251248480), (2, 125624240), (4, 62812120), (5, 50249696), (7, 35892640), (8, 31406060), (10, 25124848), (14, 17946320), (16, 15703030), (20, 12562424), (28, 8973160), (32, 7851515), (35, 7178528), (40, 6281212), (49, 5127520), (56, 4486580), (70, 3589264), (73, 3441760), (80, 3140606), (98, 2563760), (112, 2243290), (140, 1794632), (146, 1720880), (160, 1570303), (196, 1281880), (224, 1121645), (245, 1025504), (280, 897316), (292, 860440), (365, 688352), (392, 640940), (439, 572320), (490, 512752), (511, 491680), (560, 448658), (584, 430220), (730, 344176), (784, 320470), (878, 286160), (980, 256376), (1022, 245840), (1120, 224329), (1168, 215110), (1460, 172088), (1568, 160235), (1756, 143080), (1960, 128188), (2044, 122920), (2195, 114464), (2336, 107555), (2555, 98336), (2920, 86044), (3073, 81760), (3512, 71540), (3577, 70240), (3920, 64094), (4088, 61460), (4390, 57232), (5110, 49168), (5840, 43022), (6146, 40880), (7024, 35770), (7154, 35120), (7840, 32047), (8176, 30730), (8780, 28616), (10220, 24584), (11680, 21511), (12292, 20440), (14048, 17885), (14308, 17560), (15365, 16352)]