213260740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:378

約数の個数: 144

約数和(自身を含む): 578237184

約数和(自身を除く): 364976444

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 73, 77, 98, 110, 140, 146, 154, 196, 220, 245, 271, 292, 308, 365, 385, 490, 511, 539, 542, 730, 770, 803, 980, 1022, 1078, 1084, 1355, 1460, 1540, 1606, 1897, 2044, 2156, 2555, 2695, 2710, 2981, 3212, 3577, 3794, 4015, 5110, 5390, 5420, 5621, 5962, 7154, 7588, 8030, 9485, 10220, 10780, 11242, 11924, 13279, 14308, 14905, 16060, 17885, 18970, 19783, 20867, 22484, 26558, 28105, 29810, 35770, 37940, 39347, 39566, 41734, 53116, 56210, 59620, 66395, 71540, 78694, 79132, 83468, 98915, 104335, 112420, 132790, 138481, 146069, 157388, 196735, 197830, 208670, 217613, 265580, 276962, 292138, 393470, 395660, 417340, 435226, 553924, 584276, 692405, 730345, 786940, 870452, 969367, 1088065, 1384810, 1460690, 1523291, 1938734, 2176130, 2769620, 2921380, 3046582, 3877468, 4352260, 4846835, 6093164, 7616455, 9693670, 10663037, 15232910, 19387340, 21326074, 30465820, 42652148, 53315185, 106630370, 213260740]

約数ペア:

[(1, 213260740), (2, 106630370), (4, 53315185), (5, 42652148), (7, 30465820), (10, 21326074), (11, 19387340), (14, 15232910), (20, 10663037), (22, 9693670), (28, 7616455), (35, 6093164), (44, 4846835), (49, 4352260), (55, 3877468), (70, 3046582), (73, 2921380), (77, 2769620), (98, 2176130), (110, 1938734), (140, 1523291), (146, 1460690), (154, 1384810), (196, 1088065), (220, 969367), (245, 870452), (271, 786940), (292, 730345), (308, 692405), (365, 584276), (385, 553924), (490, 435226), (511, 417340), (539, 395660), (542, 393470), (730, 292138), (770, 276962), (803, 265580), (980, 217613), (1022, 208670), (1078, 197830), (1084, 196735), (1355, 157388), (1460, 146069), (1540, 138481), (1606, 132790), (1897, 112420), (2044, 104335), (2156, 98915), (2555, 83468), (2695, 79132), (2710, 78694), (2981, 71540), (3212, 66395), (3577, 59620), (3794, 56210), (4015, 53116), (5110, 41734), (5390, 39566), (5420, 39347), (5621, 37940), (5962, 35770), (7154, 29810), (7588, 28105), (8030, 26558), (9485, 22484), (10220, 20867), (10780, 19783), (11242, 18970), (11924, 17885), (13279, 16060), (14308, 14905)]