81428067040

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{529579}}^1$

素因数の和:529656

約数の個数: 72

約数和(自身を含む): 198779971320

約数和(自身を除く): 117351904280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 961, 992, 1240, 1922, 2480, 3844, 4805, 4960, 7688, 9610, 15376, 19220, 30752, 38440, 76880, 153760, 529579, 1059158, 2118316, 2647895, 4236632, 5295790, 8473264, 10591580, 16416949, 16946528, 21183160, 32833898, 42366320, 65667796, 82084745, 84732640, 131335592, 164169490, 262671184, 328338980, 508925419, 525342368, 656677960, 1017850838, 1313355920, 2035701676, 2544627095, 2626711840, 4071403352, 5089254190, 8142806704, 10178508380, 16285613408, 20357016760, 40714033520, 81428067040]

約数ペア:

[(1, 81428067040), (2, 40714033520), (4, 20357016760), (5, 16285613408), (8, 10178508380), (10, 8142806704), (16, 5089254190), (20, 4071403352), (31, 2626711840), (32, 2544627095), (40, 2035701676), (62, 1313355920), (80, 1017850838), (124, 656677960), (155, 525342368), (160, 508925419), (248, 328338980), (310, 262671184), (496, 164169490), (620, 131335592), (961, 84732640), (992, 82084745), (1240, 65667796), (1922, 42366320), (2480, 32833898), (3844, 21183160), (4805, 16946528), (4960, 16416949), (7688, 10591580), (9610, 8473264), (15376, 5295790), (19220, 4236632), (30752, 2647895), (38440, 2118316), (76880, 1059158), (153760, 529579)]