291211812

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{1579}}^1$

素因数の和:1745

約数の個数: 72

約数和(自身を含む): 759158400

約数和(自身を除く): 467946588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 109, 141, 188, 218, 282, 327, 423, 436, 564, 654, 846, 981, 1308, 1579, 1692, 1962, 3158, 3924, 4737, 5123, 6316, 9474, 10246, 14211, 15369, 18948, 20492, 28422, 30738, 46107, 56844, 61476, 74213, 92214, 148426, 172111, 184428, 222639, 296852, 344222, 445278, 516333, 667917, 688444, 890556, 1032666, 1335834, 1548999, 2065332, 2671668, 3097998, 6195996, 8089217, 16178434, 24267651, 32356868, 48535302, 72802953, 97070604, 145605906, 291211812]

約数ペア:

[(1, 291211812), (2, 145605906), (3, 97070604), (4, 72802953), (6, 48535302), (9, 32356868), (12, 24267651), (18, 16178434), (36, 8089217), (47, 6195996), (94, 3097998), (109, 2671668), (141, 2065332), (188, 1548999), (218, 1335834), (282, 1032666), (327, 890556), (423, 688444), (436, 667917), (564, 516333), (654, 445278), (846, 344222), (981, 296852), (1308, 222639), (1579, 184428), (1692, 172111), (1962, 148426), (3158, 92214), (3924, 74213), (4737, 61476), (5123, 56844), (6316, 46107), (9474, 30738), (10246, 28422), (14211, 20492), (15369, 18948)]