20280721120

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11523137}}^1$

素因数の和:11523163

約数の個数: 48

約数和(自身を含む): 52268953968

約数和(自身を除く): 31988232848

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11523137, 23046274, 46092548, 57615685, 92185096, 115231370, 126754507, 184370192, 230462740, 253509014, 368740384, 460925480, 507018028, 633772535, 921850960, 1014036056, 1267545070, 1843701920, 2028072112, 2535090140, 4056144224, 5070180280, 10140360560, 20280721120]

約数ペア:

[(1, 20280721120), (2, 10140360560), (4, 5070180280), (5, 4056144224), (8, 2535090140), (10, 2028072112), (11, 1843701920), (16, 1267545070), (20, 1014036056), (22, 921850960), (32, 633772535), (40, 507018028), (44, 460925480), (55, 368740384), (80, 253509014), (88, 230462740), (110, 184370192), (160, 126754507), (176, 115231370), (220, 92185096), (352, 57615685), (440, 46092548), (880, 23046274), (1760, 11523137)]