19806976

素因数分解:

$2^8\times 7^2\times {\mathrm{1579}}^1$

素因数の和:1609

約数の個数: 54

約数和(自身を含む): 46020660

約数和(自身を除く): 26213684

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1568, 1579, 1792, 3136, 3158, 6272, 6316, 11053, 12544, 12632, 22106, 25264, 44212, 50528, 77371, 88424, 101056, 154742, 176848, 202112, 309484, 353696, 404224, 618968, 707392, 1237936, 1414784, 2475872, 2829568, 4951744, 9903488, 19806976]

約数ペア:

[(1, 19806976), (2, 9903488), (4, 4951744), (7, 2829568), (8, 2475872), (14, 1414784), (16, 1237936), (28, 707392), (32, 618968), (49, 404224), (56, 353696), (64, 309484), (98, 202112), (112, 176848), (128, 154742), (196, 101056), (224, 88424), (256, 77371), (392, 50528), (448, 44212), (784, 25264), (896, 22106), (1568, 12632), (1579, 12544), (1792, 11053), (3136, 6316), (3158, 6272)]