20291266816

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{1367}}^1\times {\mathrm{2521}}^1$

素因数の和:3927

約数の個数: 72

約数和(自身を含む): 42311977344

約数和(自身を除く): 22020710528

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 736, 1367, 1472, 2521, 2734, 2944, 5042, 5468, 5888, 10084, 10936, 20168, 21872, 31441, 40336, 43744, 57983, 62882, 80672, 87488, 115966, 125764, 161344, 174976, 231932, 251528, 322688, 349952, 463864, 503056, 645376, 927728, 1006112, 1855456, 2012224, 3446207, 3710912, 4024448, 6892414, 7421824, 8048896, 13784828, 14843648, 27569656, 55139312, 79262761, 110278624, 158525522, 220557248, 317051044, 441114496, 634102088, 882228992, 1268204176, 2536408352, 5072816704, 10145633408, 20291266816]

約数ペア:

[(1, 20291266816), (2, 10145633408), (4, 5072816704), (8, 2536408352), (16, 1268204176), (23, 882228992), (32, 634102088), (46, 441114496), (64, 317051044), (92, 220557248), (128, 158525522), (184, 110278624), (256, 79262761), (368, 55139312), (736, 27569656), (1367, 14843648), (1472, 13784828), (2521, 8048896), (2734, 7421824), (2944, 6892414), (5042, 4024448), (5468, 3710912), (5888, 3446207), (10084, 2012224), (10936, 1855456), (20168, 1006112), (21872, 927728), (31441, 645376), (40336, 503056), (43744, 463864), (57983, 349952), (62882, 322688), (80672, 251528), (87488, 231932), (115966, 174976), (125764, 161344)]