31523940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:346

約数の個数: 144

約数和(自身を含む): 110702592

約数和(自身を除く): 79178652

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 127, 140, 180, 197, 210, 252, 254, 315, 381, 394, 420, 508, 591, 630, 635, 762, 788, 889, 985, 1143, 1182, 1260, 1270, 1379, 1524, 1773, 1778, 1905, 1970, 2286, 2364, 2540, 2667, 2758, 2955, 3546, 3556, 3810, 3940, 4137, 4445, 4572, 5334, 5516, 5715, 5910, 6895, 7092, 7620, 8001, 8274, 8865, 8890, 10668, 11430, 11820, 12411, 13335, 13790, 16002, 16548, 17730, 17780, 20685, 22860, 24822, 25019, 26670, 27580, 32004, 35460, 40005, 41370, 49644, 50038, 53340, 62055, 75057, 80010, 82740, 100076, 124110, 125095, 150114, 160020, 175133, 225171, 248220, 250190, 300228, 350266, 375285, 450342, 500380, 525399, 700532, 750570, 875665, 900684, 1050798, 1125855, 1501140, 1576197, 1751330, 2101596, 2251710, 2626995, 3152394, 3502660, 4503420, 5253990, 6304788, 7880985, 10507980, 15761970, 31523940]

約数ペア:

[(1, 31523940), (2, 15761970), (3, 10507980), (4, 7880985), (5, 6304788), (6, 5253990), (7, 4503420), (9, 3502660), (10, 3152394), (12, 2626995), (14, 2251710), (15, 2101596), (18, 1751330), (20, 1576197), (21, 1501140), (28, 1125855), (30, 1050798), (35, 900684), (36, 875665), (42, 750570), (45, 700532), (60, 525399), (63, 500380), (70, 450342), (84, 375285), (90, 350266), (105, 300228), (126, 250190), (127, 248220), (140, 225171), (180, 175133), (197, 160020), (210, 150114), (252, 125095), (254, 124110), (315, 100076), (381, 82740), (394, 80010), (420, 75057), (508, 62055), (591, 53340), (630, 50038), (635, 49644), (762, 41370), (788, 40005), (889, 35460), (985, 32004), (1143, 27580), (1182, 26670), (1260, 25019), (1270, 24822), (1379, 22860), (1524, 20685), (1773, 17780), (1778, 17730), (1905, 16548), (1970, 16002), (2286, 13790), (2364, 13335), (2540, 12411), (2667, 11820), (2758, 11430), (2955, 10668), (3546, 8890), (3556, 8865), (3810, 8274), (3940, 8001), (4137, 7620), (4445, 7092), (4572, 6895), (5334, 5910), (5516, 5715)]