403880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 950400

約数和(自身を除く): 546520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 439, 460, 878, 920, 1756, 2195, 3512, 4390, 8780, 10097, 17560, 20194, 40388, 50485, 80776, 100970, 201940, 403880]

約数ペア:

[(1, 403880), (2, 201940), (4, 100970), (5, 80776), (8, 50485), (10, 40388), (20, 20194), (23, 17560), (40, 10097), (46, 8780), (92, 4390), (115, 3512), (184, 2195), (230, 1756), (439, 920), (460, 878)]