252910280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{903251}}^1$

素因数の和:903269

約数の個数: 32

約数和(自身を含む): 650341440

約数和(自身を除く): 397431160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 903251, 1806502, 3613004, 4516255, 6322757, 7226008, 9032510, 12645514, 18065020, 25291028, 31613785, 36130040, 50582056, 63227570, 126455140, 252910280]

約数ペア:

[(1, 252910280), (2, 126455140), (4, 63227570), (5, 50582056), (7, 36130040), (8, 31613785), (10, 25291028), (14, 18065020), (20, 12645514), (28, 9032510), (35, 7226008), (40, 6322757), (56, 4516255), (70, 3613004), (140, 1806502), (280, 903251)]