72645720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:657

約数の個数: 128

約数和(自身を含む): 250905600

約数和(自身を除く): 178259880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 197, 210, 280, 394, 420, 439, 591, 788, 840, 878, 985, 1182, 1317, 1379, 1576, 1756, 1970, 2195, 2364, 2634, 2758, 2955, 3073, 3512, 3940, 4137, 4390, 4728, 5268, 5516, 5910, 6146, 6585, 6895, 7880, 8274, 8780, 9219, 10536, 11032, 11820, 12292, 13170, 13790, 15365, 16548, 17560, 18438, 20685, 23640, 24584, 26340, 27580, 30730, 33096, 36876, 41370, 46095, 52680, 55160, 61460, 73752, 82740, 86483, 92190, 122920, 165480, 172966, 184380, 259449, 345932, 368760, 432415, 518898, 605381, 691864, 864830, 1037796, 1210762, 1297245, 1729660, 1816143, 2075592, 2421524, 2594490, 3026905, 3459320, 3632286, 4843048, 5188980, 6053810, 7264572, 9080715, 10377960, 12107620, 14529144, 18161430, 24215240, 36322860, 72645720]

約数ペア:

[(1, 72645720), (2, 36322860), (3, 24215240), (4, 18161430), (5, 14529144), (6, 12107620), (7, 10377960), (8, 9080715), (10, 7264572), (12, 6053810), (14, 5188980), (15, 4843048), (20, 3632286), (21, 3459320), (24, 3026905), (28, 2594490), (30, 2421524), (35, 2075592), (40, 1816143), (42, 1729660), (56, 1297245), (60, 1210762), (70, 1037796), (84, 864830), (105, 691864), (120, 605381), (140, 518898), (168, 432415), (197, 368760), (210, 345932), (280, 259449), (394, 184380), (420, 172966), (439, 165480), (591, 122920), (788, 92190), (840, 86483), (878, 82740), (985, 73752), (1182, 61460), (1317, 55160), (1379, 52680), (1576, 46095), (1756, 41370), (1970, 36876), (2195, 33096), (2364, 30730), (2634, 27580), (2758, 26340), (2955, 24584), (3073, 23640), (3512, 20685), (3940, 18438), (4137, 17560), (4390, 16548), (4728, 15365), (5268, 13790), (5516, 13170), (5910, 12292), (6146, 11820), (6585, 11032), (6895, 10536), (7880, 9219), (8274, 8780)]