255278240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{32561}}^1$

素因数の和:32590

約数の個数: 72

約数和(自身を含む): 701580852

約数和(自身を除く): 446302612

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 32561, 65122, 130244, 162805, 227927, 260488, 325610, 455854, 520976, 651220, 911708, 1041952, 1139635, 1302440, 1595489, 1823416, 2279270, 2604880, 3190978, 3646832, 4558540, 5209760, 6381956, 7293664, 7977445, 9117080, 12763912, 15954890, 18234160, 25527824, 31909780, 36468320, 51055648, 63819560, 127639120, 255278240]

約数ペア:

[(1, 255278240), (2, 127639120), (4, 63819560), (5, 51055648), (7, 36468320), (8, 31909780), (10, 25527824), (14, 18234160), (16, 15954890), (20, 12763912), (28, 9117080), (32, 7977445), (35, 7293664), (40, 6381956), (49, 5209760), (56, 4558540), (70, 3646832), (80, 3190978), (98, 2604880), (112, 2279270), (140, 1823416), (160, 1595489), (196, 1302440), (224, 1139635), (245, 1041952), (280, 911708), (392, 651220), (490, 520976), (560, 455854), (784, 325610), (980, 260488), (1120, 227927), (1568, 162805), (1960, 130244), (3920, 65122), (7840, 32561)]