20779712

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:369

約数の個数: 56

約数和(自身を含む): 44439840

約数和(自身を除く): 23660128

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 71, 136, 142, 269, 272, 284, 538, 544, 568, 1076, 1088, 1136, 1207, 2152, 2272, 2414, 4304, 4544, 4573, 4828, 8608, 9146, 9656, 17216, 18292, 19099, 19312, 36584, 38198, 38624, 73168, 76396, 77248, 146336, 152792, 292672, 305584, 324683, 611168, 649366, 1222336, 1298732, 2597464, 5194928, 10389856, 20779712]

約数ペア:

[(1, 20779712), (2, 10389856), (4, 5194928), (8, 2597464), (16, 1298732), (17, 1222336), (32, 649366), (34, 611168), (64, 324683), (68, 305584), (71, 292672), (136, 152792), (142, 146336), (269, 77248), (272, 76396), (284, 73168), (538, 38624), (544, 38198), (568, 36584), (1076, 19312), (1088, 19099), (1136, 18292), (1207, 17216), (2152, 9656), (2272, 9146), (2414, 8608), (4304, 4828), (4544, 4573)]