297560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 689040

約数和(自身を除く): 391480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 173, 215, 344, 346, 430, 692, 860, 865, 1384, 1720, 1730, 3460, 6920, 7439, 14878, 29756, 37195, 59512, 74390, 148780, 297560]

約数ペア:

[(1, 297560), (2, 148780), (4, 74390), (5, 59512), (8, 37195), (10, 29756), (20, 14878), (40, 7439), (43, 6920), (86, 3460), (172, 1730), (173, 1720), (215, 1384), (344, 865), (346, 860), (430, 692)]