990474560

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{162907}}^1$

素因数の和:162943

約数の個数: 56

約数和(自身を含む): 2482717920

約数和(自身を除く): 1492243360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 162907, 325814, 651628, 814535, 1303256, 1629070, 2606512, 3095233, 3258140, 5213024, 6190466, 6516280, 10426048, 12380932, 13032560, 15476165, 24761864, 26065120, 30952330, 49523728, 52130240, 61904660, 99047456, 123809320, 198094912, 247618640, 495237280, 990474560]

約数ペア:

[(1, 990474560), (2, 495237280), (4, 247618640), (5, 198094912), (8, 123809320), (10, 99047456), (16, 61904660), (19, 52130240), (20, 49523728), (32, 30952330), (38, 26065120), (40, 24761864), (64, 15476165), (76, 13032560), (80, 12380932), (95, 10426048), (152, 6516280), (160, 6190466), (190, 5213024), (304, 3258140), (320, 3095233), (380, 2606512), (608, 1629070), (760, 1303256), (1216, 814535), (1520, 651628), (3040, 325814), (6080, 162907)]