2013260720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{2909}}^1$

素因数の和:3174

約数の個数: 80

約数和(自身を含む): 4819379040

約数和(自身を除く): 2806118320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 211, 328, 410, 422, 656, 820, 844, 1055, 1640, 1688, 2110, 2909, 3280, 3376, 4220, 5818, 8440, 8651, 11636, 14545, 16880, 17302, 23272, 29090, 34604, 43255, 46544, 58180, 69208, 86510, 116360, 119269, 138416, 173020, 232720, 238538, 346040, 477076, 596345, 613799, 692080, 954152, 1192690, 1227598, 1908304, 2385380, 2455196, 3068995, 4770760, 4910392, 6137990, 9541520, 9820784, 12275980, 24551960, 25165759, 49103920, 50331518, 100663036, 125828795, 201326072, 251657590, 402652144, 503315180, 1006630360, 2013260720]

約数ペア:

[(1, 2013260720), (2, 1006630360), (4, 503315180), (5, 402652144), (8, 251657590), (10, 201326072), (16, 125828795), (20, 100663036), (40, 50331518), (41, 49103920), (80, 25165759), (82, 24551960), (164, 12275980), (205, 9820784), (211, 9541520), (328, 6137990), (410, 4910392), (422, 4770760), (656, 3068995), (820, 2455196), (844, 2385380), (1055, 1908304), (1640, 1227598), (1688, 1192690), (2110, 954152), (2909, 692080), (3280, 613799), (3376, 596345), (4220, 477076), (5818, 346040), (8440, 238538), (8651, 232720), (11636, 173020), (14545, 138416), (16880, 119269), (17302, 116360), (23272, 86510), (29090, 69208), (34604, 58180), (43255, 46544)]