219880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 518400

約数和(自身を除く): 298520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 239, 460, 478, 920, 956, 1195, 1912, 2390, 4780, 5497, 9560, 10994, 21988, 27485, 43976, 54970, 109940, 219880]

約数ペア:

[(1, 219880), (2, 109940), (4, 54970), (5, 43976), (8, 27485), (10, 21988), (20, 10994), (23, 9560), (40, 5497), (46, 4780), (92, 2390), (115, 1912), (184, 1195), (230, 956), (239, 920), (460, 478)]