20108480

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:262

約数の個数: 112

約数和(自身を含む): 56180736

約数和(自身を除く): 36072256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 56, 64, 70, 80, 94, 112, 140, 160, 188, 191, 224, 235, 280, 320, 329, 376, 382, 448, 470, 560, 658, 752, 764, 940, 955, 1120, 1316, 1337, 1504, 1528, 1645, 1880, 1910, 2240, 2632, 2674, 3008, 3056, 3290, 3760, 3820, 5264, 5348, 6112, 6580, 6685, 7520, 7640, 8977, 10528, 10696, 12224, 13160, 13370, 15040, 15280, 17954, 21056, 21392, 26320, 26740, 30560, 35908, 42784, 44885, 52640, 53480, 61120, 62839, 71816, 85568, 89770, 105280, 106960, 125678, 143632, 179540, 213920, 251356, 287264, 314195, 359080, 427840, 502712, 574528, 628390, 718160, 1005424, 1256780, 1436320, 2010848, 2513560, 2872640, 4021696, 5027120, 10054240, 20108480]

約数ペア:

[(1, 20108480), (2, 10054240), (4, 5027120), (5, 4021696), (7, 2872640), (8, 2513560), (10, 2010848), (14, 1436320), (16, 1256780), (20, 1005424), (28, 718160), (32, 628390), (35, 574528), (40, 502712), (47, 427840), (56, 359080), (64, 314195), (70, 287264), (80, 251356), (94, 213920), (112, 179540), (140, 143632), (160, 125678), (188, 106960), (191, 105280), (224, 89770), (235, 85568), (280, 71816), (320, 62839), (329, 61120), (376, 53480), (382, 52640), (448, 44885), (470, 42784), (560, 35908), (658, 30560), (752, 26740), (764, 26320), (940, 21392), (955, 21056), (1120, 17954), (1316, 15280), (1337, 15040), (1504, 13370), (1528, 13160), (1645, 12224), (1880, 10696), (1910, 10528), (2240, 8977), (2632, 7640), (2674, 7520), (3008, 6685), (3056, 6580), (3290, 6112), (3760, 5348), (3820, 5264)]