28696120

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7103}}^1$

素因数の和:7215

約数の個数: 32

約数和(自身を含む): 65214720

約数和(自身を除く): 36518600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 7103, 14206, 28412, 35515, 56824, 71030, 142060, 284120, 717403, 1434806, 2869612, 3587015, 5739224, 7174030, 14348060, 28696120]

約数ペア:

[(1, 28696120), (2, 14348060), (4, 7174030), (5, 5739224), (8, 3587015), (10, 2869612), (20, 1434806), (40, 717403), (101, 284120), (202, 142060), (404, 71030), (505, 56824), (808, 35515), (1010, 28412), (2020, 14206), (4040, 7103)]