9749720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3433}}^1$

素因数の和:3515

約数の個数: 32

約数和(自身を含む): 22252320

約数和(自身を除く): 12502600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 3433, 6866, 13732, 17165, 27464, 34330, 68660, 137320, 243743, 487486, 974972, 1218715, 1949944, 2437430, 4874860, 9749720]

約数ペア:

[(1, 9749720), (2, 4874860), (4, 2437430), (5, 1949944), (8, 1218715), (10, 974972), (20, 487486), (40, 243743), (71, 137320), (142, 68660), (284, 34330), (355, 27464), (568, 17165), (710, 13732), (1420, 6866), (2840, 3433)]