19780768

素因数分解:

$2^5\times 7^1\times {\mathrm{233}}^1\times {\mathrm{379}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 25034912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 233, 379, 466, 758, 932, 1516, 1631, 1864, 2653, 3032, 3262, 3728, 5306, 6064, 6524, 7456, 10612, 12128, 13048, 21224, 26096, 42448, 52192, 84896, 88307, 176614, 353228, 618149, 706456, 1236298, 1412912, 2472596, 2825824, 4945192, 9890384, 19780768]

約数ペア:

[(1, 19780768), (2, 9890384), (4, 4945192), (7, 2825824), (8, 2472596), (14, 1412912), (16, 1236298), (28, 706456), (32, 618149), (56, 353228), (112, 176614), (224, 88307), (233, 84896), (379, 52192), (466, 42448), (758, 26096), (932, 21224), (1516, 13048), (1631, 12128), (1864, 10612), (2653, 7456), (3032, 6524), (3262, 6064), (3728, 5306)]