20900096

素因数分解:

$2^8\times 7^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 48565440

約数和(自身を除く): 27665344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 107, 109, 112, 128, 214, 218, 224, 256, 428, 436, 448, 749, 763, 856, 872, 896, 1498, 1526, 1712, 1744, 1792, 2996, 3052, 3424, 3488, 5992, 6104, 6848, 6976, 11663, 11984, 12208, 13696, 13952, 23326, 23968, 24416, 27392, 27904, 46652, 47936, 48832, 81641, 93304, 95872, 97664, 163282, 186608, 191744, 195328, 326564, 373216, 653128, 746432, 1306256, 1492864, 2612512, 2985728, 5225024, 10450048, 20900096]

約数ペア:

[(1, 20900096), (2, 10450048), (4, 5225024), (7, 2985728), (8, 2612512), (14, 1492864), (16, 1306256), (28, 746432), (32, 653128), (56, 373216), (64, 326564), (107, 195328), (109, 191744), (112, 186608), (128, 163282), (214, 97664), (218, 95872), (224, 93304), (256, 81641), (428, 48832), (436, 47936), (448, 46652), (749, 27904), (763, 27392), (856, 24416), (872, 23968), (896, 23326), (1498, 13952), (1526, 13696), (1712, 12208), (1744, 11984), (1792, 11663), (2996, 6976), (3052, 6848), (3424, 6104), (3488, 5992)]