128827920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:449

約数の個数: 160

約数和(自身を含む): 434472192

約数和(自身を除く): 305644272

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 157, 195, 208, 240, 260, 263, 312, 314, 390, 471, 520, 526, 624, 628, 780, 785, 789, 942, 1040, 1052, 1256, 1315, 1560, 1570, 1578, 1884, 2041, 2104, 2355, 2512, 2630, 3120, 3140, 3156, 3419, 3768, 3945, 4082, 4208, 4710, 5260, 6123, 6280, 6312, 6838, 7536, 7890, 8164, 9420, 10205, 10257, 10520, 12246, 12560, 12624, 13676, 15780, 16328, 17095, 18840, 20410, 20514, 21040, 24492, 27352, 30615, 31560, 32656, 34190, 37680, 40820, 41028, 41291, 48984, 51285, 54704, 61230, 63120, 68380, 81640, 82056, 82582, 97968, 102570, 122460, 123873, 136760, 163280, 164112, 165164, 205140, 206455, 244920, 247746, 273520, 330328, 410280, 412910, 489840, 495492, 536783, 619365, 660656, 820560, 825820, 990984, 1073566, 1238730, 1610349, 1651640, 1981968, 2147132, 2477460, 2683915, 3220698, 3303280, 4294264, 4954920, 5367830, 6441396, 8051745, 8588528, 9909840, 10735660, 12882792, 16103490, 21471320, 25765584, 32206980, 42942640, 64413960, 128827920]

約数ペア:

[(1, 128827920), (2, 64413960), (3, 42942640), (4, 32206980), (5, 25765584), (6, 21471320), (8, 16103490), (10, 12882792), (12, 10735660), (13, 9909840), (15, 8588528), (16, 8051745), (20, 6441396), (24, 5367830), (26, 4954920), (30, 4294264), (39, 3303280), (40, 3220698), (48, 2683915), (52, 2477460), (60, 2147132), (65, 1981968), (78, 1651640), (80, 1610349), (104, 1238730), (120, 1073566), (130, 990984), (156, 825820), (157, 820560), (195, 660656), (208, 619365), (240, 536783), (260, 495492), (263, 489840), (312, 412910), (314, 410280), (390, 330328), (471, 273520), (520, 247746), (526, 244920), (624, 206455), (628, 205140), (780, 165164), (785, 164112), (789, 163280), (942, 136760), (1040, 123873), (1052, 122460), (1256, 102570), (1315, 97968), (1560, 82582), (1570, 82056), (1578, 81640), (1884, 68380), (2041, 63120), (2104, 61230), (2355, 54704), (2512, 51285), (2630, 48984), (3120, 41291), (3140, 41028), (3156, 40820), (3419, 37680), (3768, 34190), (3945, 32656), (4082, 31560), (4208, 30615), (4710, 27352), (5260, 24492), (6123, 21040), (6280, 20514), (6312, 20410), (6838, 18840), (7536, 17095), (7890, 16328), (8164, 15780), (9420, 13676), (10205, 12624), (10257, 12560), (10520, 12246)]