25780815

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^2$

素因数の和:98

約数の個数: 72

約数和(自身を含む): 50566320

約数和(自身を除く): 24785505

約数列:

[1, 3, 5, 9, 15, 19, 23, 27, 45, 57, 69, 95, 115, 135, 171, 207, 285, 345, 361, 437, 513, 529, 621, 855, 1035, 1083, 1311, 1587, 1805, 2185, 2565, 2645, 3105, 3249, 3933, 4761, 5415, 6555, 7935, 8303, 9747, 10051, 11799, 14283, 16245, 19665, 23805, 24909, 30153, 41515, 48735, 50255, 58995, 71415, 74727, 90459, 124545, 150765, 190969, 224181, 271377, 373635, 452295, 572907, 954845, 1120905, 1356885, 1718721, 2864535, 5156163, 8593605, 25780815]

約数ペア:

[(1, 25780815), (3, 8593605), (5, 5156163), (9, 2864535), (15, 1718721), (19, 1356885), (23, 1120905), (27, 954845), (45, 572907), (57, 452295), (69, 373635), (95, 271377), (115, 224181), (135, 190969), (171, 150765), (207, 124545), (285, 90459), (345, 74727), (361, 71415), (437, 58995), (513, 50255), (529, 48735), (621, 41515), (855, 30153), (1035, 24909), (1083, 23805), (1311, 19665), (1587, 16245), (1805, 14283), (2185, 11799), (2565, 10051), (2645, 9747), (3105, 8303), (3249, 7935), (3933, 6555), (4761, 5415)]