20129536

素因数分解:

$2^8\times 7^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 47093760

約数和(自身を除く): 26964224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 128, 188, 224, 239, 256, 329, 376, 448, 478, 658, 752, 896, 956, 1316, 1504, 1673, 1792, 1912, 2632, 3008, 3346, 3824, 5264, 6016, 6692, 7648, 10528, 11233, 12032, 13384, 15296, 21056, 22466, 26768, 30592, 42112, 44932, 53536, 61184, 78631, 84224, 89864, 107072, 157262, 179728, 214144, 314524, 359456, 428288, 629048, 718912, 1258096, 1437824, 2516192, 2875648, 5032384, 10064768, 20129536]

約数ペア:

[(1, 20129536), (2, 10064768), (4, 5032384), (7, 2875648), (8, 2516192), (14, 1437824), (16, 1258096), (28, 718912), (32, 629048), (47, 428288), (56, 359456), (64, 314524), (94, 214144), (112, 179728), (128, 157262), (188, 107072), (224, 89864), (239, 84224), (256, 78631), (329, 61184), (376, 53536), (448, 44932), (478, 42112), (658, 30592), (752, 26768), (896, 22466), (956, 21056), (1316, 15296), (1504, 13384), (1673, 12032), (1792, 11233), (1912, 10528), (2632, 7648), (3008, 6692), (3346, 6016), (3824, 5264)]