81976832

素因数分解:

$2^9\times 7^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:371

約数の個数: 80

約数和(自身を含む): 190032480

約数和(自身を除く): 108055648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 89, 112, 128, 178, 224, 256, 257, 356, 448, 512, 514, 623, 712, 896, 1028, 1246, 1424, 1792, 1799, 2056, 2492, 2848, 3584, 3598, 4112, 4984, 5696, 7196, 8224, 9968, 11392, 14392, 16448, 19936, 22784, 22873, 28784, 32896, 39872, 45568, 45746, 57568, 65792, 79744, 91492, 115136, 131584, 159488, 160111, 182984, 230272, 318976, 320222, 365968, 460544, 640444, 731936, 921088, 1280888, 1463872, 2561776, 2927744, 5123552, 5855488, 10247104, 11710976, 20494208, 40988416, 81976832]

約数ペア:

[(1, 81976832), (2, 40988416), (4, 20494208), (7, 11710976), (8, 10247104), (14, 5855488), (16, 5123552), (28, 2927744), (32, 2561776), (56, 1463872), (64, 1280888), (89, 921088), (112, 731936), (128, 640444), (178, 460544), (224, 365968), (256, 320222), (257, 318976), (356, 230272), (448, 182984), (512, 160111), (514, 159488), (623, 131584), (712, 115136), (896, 91492), (1028, 79744), (1246, 65792), (1424, 57568), (1792, 45746), (1799, 45568), (2056, 39872), (2492, 32896), (2848, 28784), (3584, 22873), (3598, 22784), (4112, 19936), (4984, 16448), (5696, 14392), (7196, 11392), (8224, 9968)]