28073045

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 18375595

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 71, 77, 79, 91, 143, 355, 385, 395, 455, 497, 553, 715, 781, 869, 923, 1001, 1027, 2485, 2765, 3905, 4345, 4615, 5005, 5135, 5467, 5609, 6083, 6461, 7189, 10153, 11297, 27335, 28045, 30415, 32305, 35945, 39263, 50765, 56485, 61699, 71071, 72917, 79079, 196315, 308495, 355355, 364585, 395395, 431893, 510419, 802087, 2159465, 2552095, 4010435, 5614609, 28073045]

約数ペア:

[(1, 28073045), (5, 5614609), (7, 4010435), (11, 2552095), (13, 2159465), (35, 802087), (55, 510419), (65, 431893), (71, 395395), (77, 364585), (79, 355355), (91, 308495), (143, 196315), (355, 79079), (385, 72917), (395, 71071), (455, 61699), (497, 56485), (553, 50765), (715, 39263), (781, 35945), (869, 32305), (923, 30415), (1001, 28045), (1027, 27335), (2485, 11297), (2765, 10153), (3905, 7189), (4345, 6461), (4615, 6083), (5005, 5609), (5135, 5467)]