78327728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{257657}}^1$

素因数の和:257684

約数の個数: 20

約数和(自身を含む): 159747960

約数和(自身を除く): 81420232

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 257657, 515314, 1030628, 2061256, 4122512, 4895483, 9790966, 19581932, 39163864, 78327728]

約数ペア:

[(1, 78327728), (2, 39163864), (4, 19581932), (8, 9790966), (16, 4895483), (19, 4122512), (38, 2061256), (76, 1030628), (152, 515314), (304, 257657)]