20154440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1153}}^1$

素因数の和:1206

約数の個数: 64

約数和(自身を含む): 49852800

約数和(自身を除く): 29698360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 380, 437, 460, 760, 874, 920, 1153, 1748, 2185, 2306, 3496, 4370, 4612, 5765, 8740, 9224, 11530, 17480, 21907, 23060, 26519, 43814, 46120, 53038, 87628, 106076, 109535, 132595, 175256, 212152, 219070, 265190, 438140, 503861, 530380, 876280, 1007722, 1060760, 2015444, 2519305, 4030888, 5038610, 10077220, 20154440]

約数ペア:

[(1, 20154440), (2, 10077220), (4, 5038610), (5, 4030888), (8, 2519305), (10, 2015444), (19, 1060760), (20, 1007722), (23, 876280), (38, 530380), (40, 503861), (46, 438140), (76, 265190), (92, 219070), (95, 212152), (115, 175256), (152, 132595), (184, 109535), (190, 106076), (230, 87628), (380, 53038), (437, 46120), (460, 43814), (760, 26519), (874, 23060), (920, 21907), (1153, 17480), (1748, 11530), (2185, 9224), (2306, 8740), (3496, 5765), (4370, 4612)]