261736215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{223}}^1\times {\mathrm{463}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 456486912

約数和(自身を除く): 194750697

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 223, 463, 507, 669, 845, 1115, 1389, 2315, 2535, 2899, 3345, 6019, 6945, 8697, 14495, 18057, 30095, 37687, 43485, 78247, 90285, 103249, 113061, 188435, 234741, 309747, 391235, 516245, 565305, 1173705, 1342237, 1548735, 4026711, 6711185, 17449081, 20133555, 52347243, 87245405, 261736215]

約数ペア:

[(1, 261736215), (3, 87245405), (5, 52347243), (13, 20133555), (15, 17449081), (39, 6711185), (65, 4026711), (169, 1548735), (195, 1342237), (223, 1173705), (463, 565305), (507, 516245), (669, 391235), (845, 309747), (1115, 234741), (1389, 188435), (2315, 113061), (2535, 103249), (2899, 90285), (3345, 78247), (6019, 43485), (6945, 37687), (8697, 30095), (14495, 18057)]