28481920

素因数分解:

$2^7\times 5^1\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:443

約数の個数: 64

約数和(自身を含む): 68739840

約数和(自身を除く): 40257920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 191, 233, 320, 382, 466, 640, 764, 932, 955, 1165, 1528, 1864, 1910, 2330, 3056, 3728, 3820, 4660, 6112, 7456, 7640, 9320, 12224, 14912, 15280, 18640, 24448, 29824, 30560, 37280, 44503, 61120, 74560, 89006, 122240, 149120, 178012, 222515, 356024, 445030, 712048, 890060, 1424096, 1780120, 2848192, 3560240, 5696384, 7120480, 14240960, 28481920]

約数ペア:

[(1, 28481920), (2, 14240960), (4, 7120480), (5, 5696384), (8, 3560240), (10, 2848192), (16, 1780120), (20, 1424096), (32, 890060), (40, 712048), (64, 445030), (80, 356024), (128, 222515), (160, 178012), (191, 149120), (233, 122240), (320, 89006), (382, 74560), (466, 61120), (640, 44503), (764, 37280), (932, 30560), (955, 29824), (1165, 24448), (1528, 18640), (1864, 15280), (1910, 14912), (2330, 12224), (3056, 9320), (3728, 7640), (3820, 7456), (4660, 6112)]