207923320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{947}}^1$

素因数の和:1468

約数の個数: 64

約数和(自身を含む): 511920000

約数和(自身を除く): 303996680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 499, 947, 998, 1894, 1996, 2495, 3788, 3992, 4735, 4990, 5489, 7576, 9470, 9980, 10417, 10978, 18940, 19960, 20834, 21956, 27445, 37880, 41668, 43912, 52085, 54890, 83336, 104170, 109780, 208340, 219560, 416680, 472553, 945106, 1890212, 2362765, 3780424, 4725530, 5198083, 9451060, 10396166, 18902120, 20792332, 25990415, 41584664, 51980830, 103961660, 207923320]

約数ペア:

[(1, 207923320), (2, 103961660), (4, 51980830), (5, 41584664), (8, 25990415), (10, 20792332), (11, 18902120), (20, 10396166), (22, 9451060), (40, 5198083), (44, 4725530), (55, 3780424), (88, 2362765), (110, 1890212), (220, 945106), (440, 472553), (499, 416680), (947, 219560), (998, 208340), (1894, 109780), (1996, 104170), (2495, 83336), (3788, 54890), (3992, 52085), (4735, 43912), (4990, 41668), (5489, 37880), (7576, 27445), (9470, 21956), (9980, 20834), (10417, 19960), (10978, 18940)]