208547415

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{2081}}^1$

素因数の和:2240

約数の個数: 48

約数和(自身を含む): 385852896

約数和(自身を除く): 177305481

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 131, 153, 255, 393, 655, 765, 1179, 1965, 2081, 2227, 5895, 6243, 6681, 10405, 11135, 18729, 20043, 31215, 33405, 35377, 93645, 100215, 106131, 176885, 272611, 318393, 530655, 817833, 1363055, 1591965, 2453499, 4089165, 4634387, 12267495, 13903161, 23171935, 41709483, 69515805, 208547415]

約数ペア:

[(1, 208547415), (3, 69515805), (5, 41709483), (9, 23171935), (15, 13903161), (17, 12267495), (45, 4634387), (51, 4089165), (85, 2453499), (131, 1591965), (153, 1363055), (255, 817833), (393, 530655), (655, 318393), (765, 272611), (1179, 176885), (1965, 106131), (2081, 100215), (2227, 93645), (5895, 35377), (6243, 33405), (6681, 31215), (10405, 20043), (11135, 18729)]