123861780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:718

約数の個数: 144

約数和(自身を含む): 432432000

約数和(自身を除く): 308570220

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, 140, 180, 197, 210, 252, 315, 394, 420, 499, 591, 630, 788, 985, 998, 1182, 1260, 1379, 1497, 1773, 1970, 1996, 2364, 2495, 2758, 2955, 2994, 3493, 3546, 3940, 4137, 4491, 4990, 5516, 5910, 5988, 6895, 6986, 7092, 7485, 8274, 8865, 8982, 9980, 10479, 11820, 12411, 13790, 13972, 14970, 16548, 17465, 17730, 17964, 20685, 20958, 22455, 24822, 27580, 29940, 31437, 34930, 35460, 41370, 41916, 44910, 49644, 52395, 62055, 62874, 69860, 82740, 89820, 98303, 104790, 124110, 125748, 157185, 196606, 209580, 248220, 294909, 314370, 393212, 491515, 589818, 628740, 688121, 884727, 983030, 1179636, 1376242, 1474545, 1769454, 1966060, 2064363, 2752484, 2949090, 3440605, 3538908, 4128726, 4423635, 5898180, 6193089, 6881210, 8257452, 8847270, 10321815, 12386178, 13762420, 17694540, 20643630, 24772356, 30965445, 41287260, 61930890, 123861780]

約数ペア:

[(1, 123861780), (2, 61930890), (3, 41287260), (4, 30965445), (5, 24772356), (6, 20643630), (7, 17694540), (9, 13762420), (10, 12386178), (12, 10321815), (14, 8847270), (15, 8257452), (18, 6881210), (20, 6193089), (21, 5898180), (28, 4423635), (30, 4128726), (35, 3538908), (36, 3440605), (42, 2949090), (45, 2752484), (60, 2064363), (63, 1966060), (70, 1769454), (84, 1474545), (90, 1376242), (105, 1179636), (126, 983030), (140, 884727), (180, 688121), (197, 628740), (210, 589818), (252, 491515), (315, 393212), (394, 314370), (420, 294909), (499, 248220), (591, 209580), (630, 196606), (788, 157185), (985, 125748), (998, 124110), (1182, 104790), (1260, 98303), (1379, 89820), (1497, 82740), (1773, 69860), (1970, 62874), (1996, 62055), (2364, 52395), (2495, 49644), (2758, 44910), (2955, 41916), (2994, 41370), (3493, 35460), (3546, 34930), (3940, 31437), (4137, 29940), (4491, 27580), (4990, 24822), (5516, 22455), (5910, 20958), (5988, 20685), (6895, 17964), (6986, 17730), (7092, 17465), (7485, 16548), (8274, 14970), (8865, 13972), (8982, 13790), (9980, 12411), (10479, 11820)]