20726464

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{499}}^1$

素因数の和:581

約数の個数: 56

約数和(自身を含む): 45720000

約数和(自身を除く): 24993536

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 59, 64, 88, 118, 176, 236, 352, 472, 499, 649, 704, 944, 998, 1298, 1888, 1996, 2596, 3776, 3992, 5192, 5489, 7984, 10384, 10978, 15968, 20768, 21956, 29441, 31936, 41536, 43912, 58882, 87824, 117764, 175648, 235528, 323851, 351296, 471056, 647702, 942112, 1295404, 1884224, 2590808, 5181616, 10363232, 20726464]

約数ペア:

[(1, 20726464), (2, 10363232), (4, 5181616), (8, 2590808), (11, 1884224), (16, 1295404), (22, 942112), (32, 647702), (44, 471056), (59, 351296), (64, 323851), (88, 235528), (118, 175648), (176, 117764), (236, 87824), (352, 58882), (472, 43912), (499, 41536), (649, 31936), (704, 29441), (944, 21956), (998, 20768), (1298, 15968), (1888, 10978), (1996, 10384), (2596, 7984), (3776, 5489), (3992, 5192)]