28189810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{1021}}^1$

素因数の和:1290

約数の個数: 32

約数和(自身を含む): 55629504

約数和(自身を除く): 27439694

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 251, 502, 1021, 1255, 2042, 2510, 2761, 5105, 5522, 10210, 11231, 13805, 22462, 27610, 56155, 112310, 256271, 512542, 1281355, 2562710, 2818981, 5637962, 14094905, 28189810]

約数ペア:

[(1, 28189810), (2, 14094905), (5, 5637962), (10, 2818981), (11, 2562710), (22, 1281355), (55, 512542), (110, 256271), (251, 112310), (502, 56155), (1021, 27610), (1255, 22462), (2042, 13805), (2510, 11231), (2761, 10210), (5105, 5522)]