131281408

素因数分解:

$2^9\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 80

約数和(自身を含む): 275473440

約数和(自身を除く): 144192032

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 67, 86, 89, 128, 134, 172, 178, 256, 268, 344, 356, 512, 536, 688, 712, 1072, 1376, 1424, 2144, 2752, 2848, 2881, 3827, 4288, 5504, 5696, 5762, 5963, 7654, 8576, 11008, 11392, 11524, 11926, 15308, 17152, 22016, 22784, 23048, 23852, 30616, 34304, 45568, 46096, 47704, 61232, 92192, 95408, 122464, 184384, 190816, 244928, 256409, 368768, 381632, 489856, 512818, 737536, 763264, 979712, 1025636, 1475072, 1526528, 1959424, 2051272, 3053056, 4102544, 8205088, 16410176, 32820352, 65640704, 131281408]

約数ペア:

[(1, 131281408), (2, 65640704), (4, 32820352), (8, 16410176), (16, 8205088), (32, 4102544), (43, 3053056), (64, 2051272), (67, 1959424), (86, 1526528), (89, 1475072), (128, 1025636), (134, 979712), (172, 763264), (178, 737536), (256, 512818), (268, 489856), (344, 381632), (356, 368768), (512, 256409), (536, 244928), (688, 190816), (712, 184384), (1072, 122464), (1376, 95408), (1424, 92192), (2144, 61232), (2752, 47704), (2848, 46096), (2881, 45568), (3827, 34304), (4288, 30616), (5504, 23852), (5696, 23048), (5762, 22784), (5963, 22016), (7654, 17152), (8576, 15308), (11008, 11926), (11392, 11524)]