20123394040

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{201961}}^1$

素因数の和:202072

約数の個数: 64

約数和(自身を含む): 47113695360

約数和(自身を除く): 26990301320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 53, 94, 106, 188, 212, 235, 265, 376, 424, 470, 530, 940, 1060, 1880, 2120, 2491, 4982, 9964, 12455, 19928, 24910, 49820, 99640, 201961, 403922, 807844, 1009805, 1615688, 2019610, 4039220, 8078440, 9492167, 10703933, 18984334, 21407866, 37968668, 42815732, 47460835, 53519665, 75937336, 85631464, 94921670, 107039330, 189843340, 214078660, 379686680, 428157320, 503084851, 1006169702, 2012339404, 2515424255, 4024678808, 5030848510, 10061697020, 20123394040]

約数ペア:

[(1, 20123394040), (2, 10061697020), (4, 5030848510), (5, 4024678808), (8, 2515424255), (10, 2012339404), (20, 1006169702), (40, 503084851), (47, 428157320), (53, 379686680), (94, 214078660), (106, 189843340), (188, 107039330), (212, 94921670), (235, 85631464), (265, 75937336), (376, 53519665), (424, 47460835), (470, 42815732), (530, 37968668), (940, 21407866), (1060, 18984334), (1880, 10703933), (2120, 9492167), (2491, 8078440), (4982, 4039220), (9964, 2019610), (12455, 1615688), (19928, 1009805), (24910, 807844), (49820, 403922), (99640, 201961)]