28514265

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 23740455

約数列:

[1, 3, 5, 13, 15, 31, 39, 53, 65, 89, 93, 155, 159, 195, 265, 267, 403, 445, 465, 689, 795, 1157, 1209, 1335, 1643, 2015, 2067, 2759, 3445, 3471, 4717, 4929, 5785, 6045, 8215, 8277, 10335, 13795, 14151, 17355, 21359, 23585, 24645, 35867, 41385, 61321, 64077, 70755, 106795, 107601, 146227, 179335, 183963, 306605, 320385, 438681, 538005, 731135, 919815, 1900951, 2193405, 5702853, 9504755, 28514265]

約数ペア:

[(1, 28514265), (3, 9504755), (5, 5702853), (13, 2193405), (15, 1900951), (31, 919815), (39, 731135), (53, 538005), (65, 438681), (89, 320385), (93, 306605), (155, 183963), (159, 179335), (195, 146227), (265, 107601), (267, 106795), (403, 70755), (445, 64077), (465, 61321), (689, 41385), (795, 35867), (1157, 24645), (1209, 23585), (1335, 21359), (1643, 17355), (2015, 14151), (2067, 13795), (2759, 10335), (3445, 8277), (3471, 8215), (4717, 6045), (4929, 5785)]