28470715

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{1277}}^1$

素因数の和:1316

約数の個数: 32

約数和(自身を含む): 42940800

約数和(自身を除く): 14470085

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 343, 455, 637, 1277, 1715, 3185, 4459, 6385, 8939, 16601, 22295, 44695, 62573, 83005, 116207, 312865, 438011, 581035, 813449, 2190055, 4067245, 5694143, 28470715]

約数ペア:

[(1, 28470715), (5, 5694143), (7, 4067245), (13, 2190055), (35, 813449), (49, 581035), (65, 438011), (91, 312865), (245, 116207), (343, 83005), (455, 62573), (637, 44695), (1277, 22295), (1715, 16601), (3185, 8939), (4459, 6385)]