28608080

素因数分解:

$2^4\times 5^1\times {\mathrm{541}}^1\times {\mathrm{661}}^1$

素因数の和:1215

約数の個数: 40

約数和(自身を含む): 66737544

約数和(自身を除く): 38129464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 541, 661, 1082, 1322, 2164, 2644, 2705, 3305, 4328, 5288, 5410, 6610, 8656, 10576, 10820, 13220, 21640, 26440, 43280, 52880, 357601, 715202, 1430404, 1788005, 2860808, 3576010, 5721616, 7152020, 14304040, 28608080]

約数ペア:

[(1, 28608080), (2, 14304040), (4, 7152020), (5, 5721616), (8, 3576010), (10, 2860808), (16, 1788005), (20, 1430404), (40, 715202), (80, 357601), (541, 52880), (661, 43280), (1082, 26440), (1322, 21640), (2164, 13220), (2644, 10820), (2705, 10576), (3305, 8656), (4328, 6610), (5288, 5410)]