28990060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{421}}^1$

素因数の和:754

約数の個数: 48

約数和(自身を含む): 66784032

約数和(自身を除く): 37793972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 313, 421, 626, 842, 1252, 1565, 1684, 2105, 3130, 3443, 4210, 4631, 6260, 6886, 8420, 9262, 13772, 17215, 18524, 23155, 34430, 46310, 68860, 92620, 131773, 263546, 527092, 658865, 1317730, 1449503, 2635460, 2899006, 5798012, 7247515, 14495030, 28990060]

約数ペア:

[(1, 28990060), (2, 14495030), (4, 7247515), (5, 5798012), (10, 2899006), (11, 2635460), (20, 1449503), (22, 1317730), (44, 658865), (55, 527092), (110, 263546), (220, 131773), (313, 92620), (421, 68860), (626, 46310), (842, 34430), (1252, 23155), (1565, 18524), (1684, 17215), (2105, 13772), (3130, 9262), (3443, 8420), (4210, 6886), (4631, 6260)]