221720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 522720

約数和(自身を除く): 301000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 241, 460, 482, 920, 964, 1205, 1928, 2410, 4820, 5543, 9640, 11086, 22172, 27715, 44344, 55430, 110860, 221720]

約数ペア:

[(1, 221720), (2, 110860), (4, 55430), (5, 44344), (8, 27715), (10, 22172), (20, 11086), (23, 9640), (40, 5543), (46, 4820), (92, 2410), (115, 1928), (184, 1205), (230, 964), (241, 920), (460, 482)]