161855655

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 289766400

約数和(自身を除く): 127910745

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 97, 129, 195, 199, 215, 291, 485, 559, 597, 645, 995, 1261, 1455, 1677, 2587, 2795, 2985, 3783, 4171, 6305, 7761, 8385, 8557, 12513, 12935, 18915, 19303, 20855, 25671, 38805, 42785, 54223, 57909, 62565, 96515, 111241, 128355, 162669, 250939, 271115, 289545, 333723, 556205, 752817, 813345, 830029, 1254695, 1668615, 2490087, 3764085, 4150145, 10790377, 12450435, 32371131, 53951885, 161855655]

約数ペア:

[(1, 161855655), (3, 53951885), (5, 32371131), (13, 12450435), (15, 10790377), (39, 4150145), (43, 3764085), (65, 2490087), (97, 1668615), (129, 1254695), (195, 830029), (199, 813345), (215, 752817), (291, 556205), (485, 333723), (559, 289545), (597, 271115), (645, 250939), (995, 162669), (1261, 128355), (1455, 111241), (1677, 96515), (2587, 62565), (2795, 57909), (2985, 54223), (3783, 42785), (4171, 38805), (6305, 25671), (7761, 20855), (8385, 19303), (8557, 18915), (12513, 12935)]