20347648

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{1303}}^1$

素因数の和:1380

約数の個数: 36

約数和(自身を含む): 41313328

約数和(自身を除く): 20965680

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 976, 1303, 1952, 2606, 3904, 5212, 7808, 10424, 15616, 20848, 41696, 79483, 83392, 158966, 166784, 317932, 333568, 635864, 1271728, 2543456, 5086912, 10173824, 20347648]

約数ペア:

[(1, 20347648), (2, 10173824), (4, 5086912), (8, 2543456), (16, 1271728), (32, 635864), (61, 333568), (64, 317932), (122, 166784), (128, 158966), (244, 83392), (256, 79483), (488, 41696), (976, 20848), (1303, 15616), (1952, 10424), (2606, 7808), (3904, 5212)]