2149720

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{241}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 4878720

約数和(自身を除く): 2729000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 241, 446, 482, 892, 964, 1115, 1205, 1784, 1928, 2230, 2410, 4460, 4820, 8920, 9640, 53743, 107486, 214972, 268715, 429944, 537430, 1074860, 2149720]

約数ペア:

[(1, 2149720), (2, 1074860), (4, 537430), (5, 429944), (8, 268715), (10, 214972), (20, 107486), (40, 53743), (223, 9640), (241, 8920), (446, 4820), (482, 4460), (892, 2410), (964, 2230), (1115, 1928), (1205, 1784)]