28128285

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{443}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 52363584

約数和(自身を除く): 24235299

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 83, 85, 153, 249, 255, 415, 443, 747, 765, 1245, 1329, 1411, 2215, 3735, 3987, 4233, 6645, 7055, 7531, 12699, 19935, 21165, 22593, 36769, 37655, 63495, 67779, 110307, 112965, 183845, 330921, 338895, 551535, 625073, 1654605, 1875219, 3125365, 5625657, 9376095, 28128285]

約数ペア:

[(1, 28128285), (3, 9376095), (5, 5625657), (9, 3125365), (15, 1875219), (17, 1654605), (45, 625073), (51, 551535), (83, 338895), (85, 330921), (153, 183845), (249, 112965), (255, 110307), (415, 67779), (443, 63495), (747, 37655), (765, 36769), (1245, 22593), (1329, 21165), (1411, 19935), (2215, 12699), (3735, 7531), (3987, 7055), (4233, 6645)]