21880960

素因数分解:

$2^7\times 5^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 30995840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 179, 191, 320, 358, 382, 640, 716, 764, 895, 955, 1432, 1528, 1790, 1910, 2864, 3056, 3580, 3820, 5728, 6112, 7160, 7640, 11456, 12224, 14320, 15280, 22912, 24448, 28640, 30560, 34189, 57280, 61120, 68378, 114560, 122240, 136756, 170945, 273512, 341890, 547024, 683780, 1094048, 1367560, 2188096, 2735120, 4376192, 5470240, 10940480, 21880960]

約数ペア:

[(1, 21880960), (2, 10940480), (4, 5470240), (5, 4376192), (8, 2735120), (10, 2188096), (16, 1367560), (20, 1094048), (32, 683780), (40, 547024), (64, 341890), (80, 273512), (128, 170945), (160, 136756), (179, 122240), (191, 114560), (320, 68378), (358, 61120), (382, 57280), (640, 34189), (716, 30560), (764, 28640), (895, 24448), (955, 22912), (1432, 15280), (1528, 14320), (1790, 12224), (1910, 11456), (2864, 7640), (3056, 7160), (3580, 6112), (3820, 5728)]