28034540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 61501440

約数和(自身を除く): 33466900

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 103, 124, 155, 206, 310, 412, 439, 515, 620, 878, 1030, 1756, 2060, 2195, 3193, 4390, 6386, 8780, 12772, 13609, 15965, 27218, 31930, 45217, 54436, 63860, 68045, 90434, 136090, 180868, 226085, 272180, 452170, 904340, 1401727, 2803454, 5606908, 7008635, 14017270, 28034540]

約数ペア:

[(1, 28034540), (2, 14017270), (4, 7008635), (5, 5606908), (10, 2803454), (20, 1401727), (31, 904340), (62, 452170), (103, 272180), (124, 226085), (155, 180868), (206, 136090), (310, 90434), (412, 68045), (439, 63860), (515, 54436), (620, 45217), (878, 31930), (1030, 27218), (1756, 15965), (2060, 13609), (2195, 12772), (3193, 8780), (4390, 6386)]