20494208

素因数分解:

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

素因数の和:367

約数の個数: 64

約数和(自身を含む): 47368800

約数和(自身を除く): 26874592

約数列:

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

約数ペア:

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