20104432

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1613}}^1$

素因数の和:1681

約数の個数: 40

約数和(自身を含む): 42028560

約数和(自身を除く): 21924128

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 1613, 3116, 3226, 6232, 6452, 12464, 12904, 25808, 30647, 61294, 66133, 122588, 132266, 245176, 264532, 490352, 529064, 1058128, 1256527, 2513054, 5026108, 10052216, 20104432]

約数ペア:

[(1, 20104432), (2, 10052216), (4, 5026108), (8, 2513054), (16, 1256527), (19, 1058128), (38, 529064), (41, 490352), (76, 264532), (82, 245176), (152, 132266), (164, 122588), (304, 66133), (328, 61294), (656, 30647), (779, 25808), (1558, 12904), (1613, 12464), (3116, 6452), (3226, 6232)]