205511580

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{126859}}^1$

素因数の和:126880

約数の個数: 60

約数和(自身を含む): 644702520

約数和(自身を除く): 439190940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 126859, 253718, 380577, 507436, 634295, 761154, 1141731, 1268590, 1522308, 1902885, 2283462, 2537180, 3425193, 3805770, 4566924, 5708655, 6850386, 7611540, 10275579, 11417310, 13700772, 17125965, 20551158, 22834620, 34251930, 41102316, 51377895, 68503860, 102755790, 205511580]

約数ペア:

[(1, 205511580), (2, 102755790), (3, 68503860), (4, 51377895), (5, 41102316), (6, 34251930), (9, 22834620), (10, 20551158), (12, 17125965), (15, 13700772), (18, 11417310), (20, 10275579), (27, 7611540), (30, 6850386), (36, 5708655), (45, 4566924), (54, 3805770), (60, 3425193), (81, 2537180), (90, 2283462), (108, 1902885), (135, 1522308), (162, 1268590), (180, 1141731), (270, 761154), (324, 634295), (405, 507436), (540, 380577), (810, 253718), (1620, 126859)]