20645039744

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{743269}}^1$

素因数の和:743321

約数の個数: 64

約数和(自身を含む): 48520665600

約数和(自身を除く): 27875625856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 434, 448, 496, 868, 896, 992, 1736, 1984, 3472, 3968, 6944, 13888, 27776, 743269, 1486538, 2973076, 5202883, 5946152, 10405766, 11892304, 20811532, 23041339, 23784608, 41623064, 46082678, 47569216, 83246128, 92165356, 95138432, 161289373, 166492256, 184330712, 322578746, 332984512, 368661424, 645157492, 665969024, 737322848, 1290314984, 1474645696, 2580629968, 2949291392, 5161259936, 10322519872, 20645039744]

約数ペア:

[(1, 20645039744), (2, 10322519872), (4, 5161259936), (7, 2949291392), (8, 2580629968), (14, 1474645696), (16, 1290314984), (28, 737322848), (31, 665969024), (32, 645157492), (56, 368661424), (62, 332984512), (64, 322578746), (112, 184330712), (124, 166492256), (128, 161289373), (217, 95138432), (224, 92165356), (248, 83246128), (434, 47569216), (448, 46082678), (496, 41623064), (868, 23784608), (896, 23041339), (992, 20811532), (1736, 11892304), (1984, 10405766), (3472, 5946152), (3968, 5202883), (6944, 2973076), (13888, 1486538), (27776, 743269)]