28306005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:350

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 28303275

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 89, 91, 105, 195, 233, 267, 273, 445, 455, 623, 699, 1157, 1165, 1335, 1365, 1631, 1869, 3029, 3115, 3471, 3495, 4893, 5785, 8099, 8155, 9087, 9345, 15145, 17355, 20737, 21203, 24297, 24465, 40495, 45435, 62211, 63609, 103685, 106015, 121485, 145159, 269581, 311055, 318045, 435477, 725795, 808743, 1347905, 1887067, 2177385, 4043715, 5661201, 9435335, 28306005]

約数ペア:

[(1, 28306005), (3, 9435335), (5, 5661201), (7, 4043715), (13, 2177385), (15, 1887067), (21, 1347905), (35, 808743), (39, 725795), (65, 435477), (89, 318045), (91, 311055), (105, 269581), (195, 145159), (233, 121485), (267, 106015), (273, 103685), (445, 63609), (455, 62211), (623, 45435), (699, 40495), (1157, 24465), (1165, 24297), (1335, 21203), (1365, 20737), (1631, 17355), (1869, 15145), (3029, 9345), (3115, 9087), (3471, 8155), (3495, 8099), (4893, 5785)]