28669264

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{409}}^1$

素因数の和:767

約数の個数: 40

約数和(自身を含む): 60143720

約数和(自身を除く): 31474456

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 337, 409, 674, 818, 1348, 1636, 2696, 3272, 4381, 5317, 5392, 6544, 8762, 10634, 17524, 21268, 35048, 42536, 70096, 85072, 137833, 275666, 551332, 1102664, 1791829, 2205328, 3583658, 7167316, 14334632, 28669264]

約数ペア:

[(1, 28669264), (2, 14334632), (4, 7167316), (8, 3583658), (13, 2205328), (16, 1791829), (26, 1102664), (52, 551332), (104, 275666), (208, 137833), (337, 85072), (409, 70096), (674, 42536), (818, 35048), (1348, 21268), (1636, 17524), (2696, 10634), (3272, 8762), (4381, 6544), (5317, 5392)]