18480945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 35721216

約数和(自身を除く): 17240271

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 67, 71, 105, 111, 185, 201, 213, 259, 335, 355, 469, 497, 555, 777, 1005, 1065, 1295, 1407, 1491, 2345, 2479, 2485, 2627, 3885, 4757, 7035, 7437, 7455, 7881, 12395, 13135, 14271, 17353, 18389, 23785, 33299, 37185, 39405, 52059, 55167, 71355, 86765, 91945, 99897, 166495, 176009, 260295, 275835, 499485, 528027, 880045, 1232063, 2640135, 3696189, 6160315, 18480945]

約数ペア:

[(1, 18480945), (3, 6160315), (5, 3696189), (7, 2640135), (15, 1232063), (21, 880045), (35, 528027), (37, 499485), (67, 275835), (71, 260295), (105, 176009), (111, 166495), (185, 99897), (201, 91945), (213, 86765), (259, 71355), (335, 55167), (355, 52059), (469, 39405), (497, 37185), (555, 33299), (777, 23785), (1005, 18389), (1065, 17353), (1295, 14271), (1407, 13135), (1491, 12395), (2345, 7881), (2479, 7455), (2485, 7437), (2627, 7035), (3885, 4757)]