9781965

素因数分解:

$3^5\times 5^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 17978688

約数和(自身を除く): 8196723

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 83, 97, 135, 243, 249, 291, 405, 415, 485, 747, 873, 1215, 1245, 1455, 2241, 2619, 3735, 4365, 6723, 7857, 8051, 11205, 13095, 20169, 23571, 24153, 33615, 39285, 40255, 72459, 100845, 117855, 120765, 217377, 362295, 652131, 1086885, 1956393, 3260655, 9781965]

約数ペア:

[(1, 9781965), (3, 3260655), (5, 1956393), (9, 1086885), (15, 652131), (27, 362295), (45, 217377), (81, 120765), (83, 117855), (97, 100845), (135, 72459), (243, 40255), (249, 39285), (291, 33615), (405, 24153), (415, 23571), (485, 20169), (747, 13095), (873, 11205), (1215, 8051), (1245, 7857), (1455, 6723), (2241, 4365), (2619, 3735)]