166201720

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{12553}}^1$

素因数の和:12895

約数の個数: 32

約数和(自身を含む): 375113520

約数和(自身を除く): 208911800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 12553, 13240, 25106, 50212, 62765, 100424, 125530, 251060, 502120, 4155043, 8310086, 16620172, 20775215, 33240344, 41550430, 83100860, 166201720]

約数ペア:

[(1, 166201720), (2, 83100860), (4, 41550430), (5, 33240344), (8, 20775215), (10, 16620172), (20, 8310086), (40, 4155043), (331, 502120), (662, 251060), (1324, 125530), (1655, 100424), (2648, 62765), (3310, 50212), (6620, 25106), (12553, 13240)]