15920205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 30916608

約数和(自身を除く): 14996403

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 67, 73, 93, 105, 155, 201, 217, 219, 335, 365, 465, 469, 511, 651, 1005, 1085, 1095, 1407, 1533, 2077, 2263, 2345, 2555, 3255, 4891, 6231, 6789, 7035, 7665, 10385, 11315, 14539, 14673, 15841, 24455, 31155, 33945, 34237, 43617, 47523, 72695, 73365, 79205, 102711, 151621, 171185, 218085, 237615, 454863, 513555, 758105, 1061347, 2274315, 3184041, 5306735, 15920205]

約数ペア:

[(1, 15920205), (3, 5306735), (5, 3184041), (7, 2274315), (15, 1061347), (21, 758105), (31, 513555), (35, 454863), (67, 237615), (73, 218085), (93, 171185), (105, 151621), (155, 102711), (201, 79205), (217, 73365), (219, 72695), (335, 47523), (365, 43617), (465, 34237), (469, 33945), (511, 31155), (651, 24455), (1005, 15841), (1085, 14673), (1095, 14539), (1407, 11315), (1533, 10385), (2077, 7665), (2263, 7035), (2345, 6789), (2555, 6231), (3255, 4891)]