51491480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{577}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 122351040

約数和(自身を除く): 70859560

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 97, 115, 184, 194, 230, 388, 460, 485, 577, 776, 920, 970, 1154, 1940, 2231, 2308, 2885, 3880, 4462, 4616, 5770, 8924, 11155, 11540, 13271, 17848, 22310, 23080, 26542, 44620, 53084, 55969, 66355, 89240, 106168, 111938, 132710, 223876, 265420, 279845, 447752, 530840, 559690, 1119380, 1287287, 2238760, 2574574, 5149148, 6436435, 10298296, 12872870, 25745740, 51491480]

約数ペア:

[(1, 51491480), (2, 25745740), (4, 12872870), (5, 10298296), (8, 6436435), (10, 5149148), (20, 2574574), (23, 2238760), (40, 1287287), (46, 1119380), (92, 559690), (97, 530840), (115, 447752), (184, 279845), (194, 265420), (230, 223876), (388, 132710), (460, 111938), (485, 106168), (577, 89240), (776, 66355), (920, 55969), (970, 53084), (1154, 44620), (1940, 26542), (2231, 23080), (2308, 22310), (2885, 17848), (3880, 13271), (4462, 11540), (4616, 11155), (5770, 8924)]