81462780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{937}}^1$

素因数の和:985

約数の個数: 192

約数和(自身を含む): 302561280

約数和(自身を除く): 221098500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 30, 35, 36, 42, 45, 46, 54, 60, 63, 69, 70, 84, 90, 92, 105, 108, 115, 126, 135, 138, 140, 161, 180, 189, 207, 210, 230, 252, 270, 276, 315, 322, 345, 378, 414, 420, 460, 483, 540, 621, 630, 644, 690, 756, 805, 828, 937, 945, 966, 1035, 1242, 1260, 1380, 1449, 1610, 1874, 1890, 1932, 2070, 2415, 2484, 2811, 2898, 3105, 3220, 3748, 3780, 4140, 4347, 4685, 4830, 5622, 5796, 6210, 6559, 7245, 8433, 8694, 9370, 9660, 11244, 12420, 13118, 14055, 14490, 16866, 17388, 18740, 19677, 21551, 21735, 25299, 26236, 28110, 28980, 32795, 33732, 39354, 42165, 43102, 43470, 50598, 56220, 59031, 64653, 65590, 78708, 84330, 86204, 86940, 98385, 101196, 107755, 118062, 126495, 129306, 131180, 150857, 168660, 177093, 193959, 196770, 215510, 236124, 252990, 258612, 295155, 301714, 323265, 354186, 387918, 393540, 431020, 452571, 505980, 581877, 590310, 603428, 646530, 708372, 754285, 775836, 885465, 905142, 969795, 1163754, 1180620, 1293060, 1357713, 1508570, 1770930, 1810284, 1939590, 2262855, 2327508, 2715426, 2909385, 3017140, 3541860, 3879180, 4073139, 4525710, 5430852, 5818770, 6788565, 8146278, 9051420, 11637540, 13577130, 16292556, 20365695, 27154260, 40731390, 81462780]

約数ペア:

[(1, 81462780), (2, 40731390), (3, 27154260), (4, 20365695), (5, 16292556), (6, 13577130), (7, 11637540), (9, 9051420), (10, 8146278), (12, 6788565), (14, 5818770), (15, 5430852), (18, 4525710), (20, 4073139), (21, 3879180), (23, 3541860), (27, 3017140), (28, 2909385), (30, 2715426), (35, 2327508), (36, 2262855), (42, 1939590), (45, 1810284), (46, 1770930), (54, 1508570), (60, 1357713), (63, 1293060), (69, 1180620), (70, 1163754), (84, 969795), (90, 905142), (92, 885465), (105, 775836), (108, 754285), (115, 708372), (126, 646530), (135, 603428), (138, 590310), (140, 581877), (161, 505980), (180, 452571), (189, 431020), (207, 393540), (210, 387918), (230, 354186), (252, 323265), (270, 301714), (276, 295155), (315, 258612), (322, 252990), (345, 236124), (378, 215510), (414, 196770), (420, 193959), (460, 177093), (483, 168660), (540, 150857), (621, 131180), (630, 129306), (644, 126495), (690, 118062), (756, 107755), (805, 101196), (828, 98385), (937, 86940), (945, 86204), (966, 84330), (1035, 78708), (1242, 65590), (1260, 64653), (1380, 59031), (1449, 56220), (1610, 50598), (1874, 43470), (1890, 43102), (1932, 42165), (2070, 39354), (2415, 33732), (2484, 32795), (2811, 28980), (2898, 28110), (3105, 26236), (3220, 25299), (3748, 21735), (3780, 21551), (4140, 19677), (4347, 18740), (4685, 17388), (4830, 16866), (5622, 14490), (5796, 14055), (6210, 13118), (6559, 12420), (7245, 11244), (8433, 9660), (8694, 9370)]