20874368

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 45110520

約数和(自身を除く): 24236152

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 53, 64, 68, 106, 128, 136, 181, 212, 272, 362, 424, 544, 724, 848, 901, 1088, 1448, 1696, 1802, 2176, 2896, 3077, 3392, 3604, 5792, 6154, 6784, 7208, 9593, 11584, 12308, 14416, 19186, 23168, 24616, 28832, 38372, 49232, 57664, 76744, 98464, 115328, 153488, 163081, 196928, 306976, 326162, 393856, 613952, 652324, 1227904, 1304648, 2609296, 5218592, 10437184, 20874368]

約数ペア:

[(1, 20874368), (2, 10437184), (4, 5218592), (8, 2609296), (16, 1304648), (17, 1227904), (32, 652324), (34, 613952), (53, 393856), (64, 326162), (68, 306976), (106, 196928), (128, 163081), (136, 153488), (181, 115328), (212, 98464), (272, 76744), (362, 57664), (424, 49232), (544, 38372), (724, 28832), (848, 24616), (901, 23168), (1088, 19186), (1448, 14416), (1696, 12308), (1802, 11584), (2176, 9593), (2896, 7208), (3077, 6784), (3392, 6154), (3604, 5792)]