179990991

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1667}}^1$

素因数の和:1753

約数の個数: 40

約数和(自身を含む): 284173824

約数和(自身を除く): 104182833

約数列:

[1, 3, 9, 27, 31, 43, 81, 93, 129, 279, 387, 837, 1161, 1333, 1667, 2511, 3483, 3999, 5001, 11997, 15003, 35991, 45009, 51677, 71681, 107973, 135027, 155031, 215043, 465093, 645129, 1395279, 1935387, 2222111, 4185837, 5806161, 6666333, 19998999, 59996997, 179990991]

約数ペア:

[(1, 179990991), (3, 59996997), (9, 19998999), (27, 6666333), (31, 5806161), (43, 4185837), (81, 2222111), (93, 1935387), (129, 1395279), (279, 645129), (387, 465093), (837, 215043), (1161, 155031), (1333, 135027), (1667, 107973), (2511, 71681), (3483, 51677), (3999, 45009), (5001, 35991), (11997, 15003)]