81143208

素因数分解:

$2^3\times 3^4\times {\mathrm{125221}}^1$

素因数の和:125239

約数の個数: 40

約数和(自身を含む): 227277930

約数和(自身を除く): 146134722

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 125221, 250442, 375663, 500884, 751326, 1001768, 1126989, 1502652, 2253978, 3005304, 3380967, 4507956, 6761934, 9015912, 10142901, 13523868, 20285802, 27047736, 40571604, 81143208]

約数ペア:

[(1, 81143208), (2, 40571604), (3, 27047736), (4, 20285802), (6, 13523868), (8, 10142901), (9, 9015912), (12, 6761934), (18, 4507956), (24, 3380967), (27, 3005304), (36, 2253978), (54, 1502652), (72, 1126989), (81, 1001768), (108, 751326), (162, 500884), (216, 375663), (324, 250442), (648, 125221)]