28117860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2221}}^1$

素因数の和:2444

約数の個数: 48

約数和(自身を含む): 79138752

約数和(自身を除く): 51020892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 2110, 2221, 2532, 3165, 4220, 4442, 6330, 6663, 8884, 11105, 12660, 13326, 22210, 26652, 33315, 44420, 66630, 133260, 468631, 937262, 1405893, 1874524, 2343155, 2811786, 4686310, 5623572, 7029465, 9372620, 14058930, 28117860]

約数ペア:

[(1, 28117860), (2, 14058930), (3, 9372620), (4, 7029465), (5, 5623572), (6, 4686310), (10, 2811786), (12, 2343155), (15, 1874524), (20, 1405893), (30, 937262), (60, 468631), (211, 133260), (422, 66630), (633, 44420), (844, 33315), (1055, 26652), (1266, 22210), (2110, 13326), (2221, 12660), (2532, 11105), (3165, 8884), (4220, 6663), (4442, 6330)]