81993564

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:419

約数の個数: 72

約数和(自身を含む): 212219280

約数和(自身を除く): 130225716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 157, 163, 178, 267, 314, 326, 356, 471, 489, 534, 628, 652, 801, 942, 978, 1068, 1413, 1467, 1602, 1884, 1956, 2826, 2934, 3204, 5652, 5868, 13973, 14507, 25591, 27946, 29014, 41919, 43521, 51182, 55892, 58028, 76773, 83838, 87042, 102364, 125757, 130563, 153546, 167676, 174084, 230319, 251514, 261126, 307092, 460638, 503028, 522252, 921276, 2277599, 4555198, 6832797, 9110396, 13665594, 20498391, 27331188, 40996782, 81993564]

約数ペア:

[(1, 81993564), (2, 40996782), (3, 27331188), (4, 20498391), (6, 13665594), (9, 9110396), (12, 6832797), (18, 4555198), (36, 2277599), (89, 921276), (157, 522252), (163, 503028), (178, 460638), (267, 307092), (314, 261126), (326, 251514), (356, 230319), (471, 174084), (489, 167676), (534, 153546), (628, 130563), (652, 125757), (801, 102364), (942, 87042), (978, 83838), (1068, 76773), (1413, 58028), (1467, 55892), (1602, 51182), (1884, 43521), (1956, 41919), (2826, 29014), (2934, 27946), (3204, 25591), (5652, 14507), (5868, 13973)]