28150990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{787}}^1$

素因数の和:881

約数の個数: 48

約数和(自身を含む): 59828112

約数和(自身を除く): 31677122

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 73, 98, 146, 245, 365, 490, 511, 730, 787, 1022, 1574, 2555, 3577, 3935, 5110, 5509, 7154, 7870, 11018, 17885, 27545, 35770, 38563, 55090, 57451, 77126, 114902, 192815, 287255, 385630, 402157, 574510, 804314, 2010785, 2815099, 4021570, 5630198, 14075495, 28150990]

約数ペア:

[(1, 28150990), (2, 14075495), (5, 5630198), (7, 4021570), (10, 2815099), (14, 2010785), (35, 804314), (49, 574510), (70, 402157), (73, 385630), (98, 287255), (146, 192815), (245, 114902), (365, 77126), (490, 57451), (511, 55090), (730, 38563), (787, 35770), (1022, 27545), (1574, 17885), (2555, 11018), (3577, 7870), (3935, 7154), (5110, 5509)]