278149480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{743}}^1$

素因数の和:959

約数の個数: 96

約数和(自身を含む): 732810240

約数和(自身を除く): 454660760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 191, 196, 245, 280, 382, 392, 490, 743, 764, 955, 980, 1337, 1486, 1528, 1910, 1960, 2674, 2972, 3715, 3820, 5201, 5348, 5944, 6685, 7430, 7640, 9359, 10402, 10696, 13370, 14860, 18718, 20804, 26005, 26740, 29720, 36407, 37436, 41608, 46795, 52010, 53480, 72814, 74872, 93590, 104020, 141913, 145628, 182035, 187180, 208040, 283826, 291256, 364070, 374360, 567652, 709565, 728140, 993391, 1135304, 1419130, 1456280, 1986782, 2838260, 3973564, 4966955, 5676520, 6953737, 7947128, 9933910, 13907474, 19867820, 27814948, 34768685, 39735640, 55629896, 69537370, 139074740, 278149480]

約数ペア:

[(1, 278149480), (2, 139074740), (4, 69537370), (5, 55629896), (7, 39735640), (8, 34768685), (10, 27814948), (14, 19867820), (20, 13907474), (28, 9933910), (35, 7947128), (40, 6953737), (49, 5676520), (56, 4966955), (70, 3973564), (98, 2838260), (140, 1986782), (191, 1456280), (196, 1419130), (245, 1135304), (280, 993391), (382, 728140), (392, 709565), (490, 567652), (743, 374360), (764, 364070), (955, 291256), (980, 283826), (1337, 208040), (1486, 187180), (1528, 182035), (1910, 145628), (1960, 141913), (2674, 104020), (2972, 93590), (3715, 74872), (3820, 72814), (5201, 53480), (5348, 52010), (5944, 46795), (6685, 41608), (7430, 37436), (7640, 36407), (9359, 29720), (10402, 26740), (10696, 26005), (13370, 20804), (14860, 18718)]