865160

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 1995840

約数和(自身を除く): 1130680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 503, 860, 1006, 1720, 2012, 2515, 4024, 5030, 10060, 20120, 21629, 43258, 86516, 108145, 173032, 216290, 432580, 865160]

約数ペア:

[(1, 865160), (2, 432580), (4, 216290), (5, 173032), (8, 108145), (10, 86516), (20, 43258), (40, 21629), (43, 20120), (86, 10060), (172, 5030), (215, 4024), (344, 2515), (430, 2012), (503, 1720), (860, 1006)]