55542025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 89980352

約数和(自身を除く): 34438327

約数列:

[1, 5, 7, 11, 25, 35, 43, 55, 61, 77, 121, 175, 215, 275, 301, 305, 385, 427, 473, 605, 671, 847, 1075, 1505, 1525, 1925, 2135, 2365, 2623, 3025, 3311, 3355, 4235, 4697, 5203, 7381, 7525, 10675, 11825, 13115, 16555, 16775, 18361, 21175, 23485, 26015, 28853, 36421, 36905, 51667, 65575, 82775, 91805, 117425, 130075, 144265, 182105, 184525, 201971, 258335, 317383, 459025, 721325, 910525, 1009855, 1291675, 1586915, 2221681, 5049275, 7934575, 11108405, 55542025]

約数ペア:

[(1, 55542025), (5, 11108405), (7, 7934575), (11, 5049275), (25, 2221681), (35, 1586915), (43, 1291675), (55, 1009855), (61, 910525), (77, 721325), (121, 459025), (175, 317383), (215, 258335), (275, 201971), (301, 184525), (305, 182105), (385, 144265), (427, 130075), (473, 117425), (605, 91805), (671, 82775), (847, 65575), (1075, 51667), (1505, 36905), (1525, 36421), (1925, 28853), (2135, 26015), (2365, 23485), (2623, 21175), (3025, 18361), (3311, 16775), (3355, 16555), (4235, 13115), (4697, 11825), (5203, 10675), (7381, 7525)]