261495808

素因数分解:

$2^{10}\times 7^1\times {\mathrm{191}}^2$

素因数の和:409

約数の個数: 66

約数和(自身を含む): 600557048

約数和(自身を除く): 339061240

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 191, 224, 256, 382, 448, 512, 764, 896, 1024, 1337, 1528, 1792, 2674, 3056, 3584, 5348, 6112, 7168, 10696, 12224, 21392, 24448, 36481, 42784, 48896, 72962, 85568, 97792, 145924, 171136, 195584, 255367, 291848, 342272, 510734, 583696, 684544, 1021468, 1167392, 1369088, 2042936, 2334784, 4085872, 4669568, 8171744, 9339136, 16343488, 18678272, 32686976, 37356544, 65373952, 130747904, 261495808]

約数ペア:

[(1, 261495808), (2, 130747904), (4, 65373952), (7, 37356544), (8, 32686976), (14, 18678272), (16, 16343488), (28, 9339136), (32, 8171744), (56, 4669568), (64, 4085872), (112, 2334784), (128, 2042936), (191, 1369088), (224, 1167392), (256, 1021468), (382, 684544), (448, 583696), (512, 510734), (764, 342272), (896, 291848), (1024, 255367), (1337, 195584), (1528, 171136), (1792, 145924), (2674, 97792), (3056, 85568), (3584, 72962), (5348, 48896), (6112, 42784), (7168, 36481), (10696, 24448), (12224, 21392)]