81264638

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{281}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 153924624

約数和(自身を除く): 72659986

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 227, 281, 454, 562, 637, 1274, 1589, 1967, 2951, 3178, 3653, 3934, 5902, 7306, 11123, 13769, 20657, 22246, 25571, 27538, 41314, 51142, 63787, 127574, 144599, 178997, 289198, 357994, 446509, 829231, 893018, 1658462, 3125563, 5804617, 6251126, 11609234, 40632319, 81264638]

約数ペア:

[(1, 81264638), (2, 40632319), (7, 11609234), (13, 6251126), (14, 5804617), (26, 3125563), (49, 1658462), (91, 893018), (98, 829231), (182, 446509), (227, 357994), (281, 289198), (454, 178997), (562, 144599), (637, 127574), (1274, 63787), (1589, 51142), (1967, 41314), (2951, 27538), (3178, 25571), (3653, 22246), (3934, 20657), (5902, 13769), (7306, 11123)]