261697345

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 392539392

約数和(自身を除く): 130842047

約数列:

[1, 5, 7, 13, 35, 65, 91, 151, 169, 293, 455, 755, 845, 1057, 1183, 1465, 1963, 2051, 3809, 5285, 5915, 9815, 10255, 13741, 19045, 25519, 26663, 44243, 49517, 68705, 127595, 133315, 178633, 221215, 247585, 309701, 346619, 575159, 893165, 1548505, 1733095, 2875795, 4026113, 7477067, 20130565, 37385335, 52339469, 261697345]

約数ペア:

[(1, 261697345), (5, 52339469), (7, 37385335), (13, 20130565), (35, 7477067), (65, 4026113), (91, 2875795), (151, 1733095), (169, 1548505), (293, 893165), (455, 575159), (755, 346619), (845, 309701), (1057, 247585), (1183, 221215), (1465, 178633), (1963, 133315), (2051, 127595), (3809, 68705), (5285, 49517), (5915, 44243), (9815, 26663), (10255, 25519), (13741, 19045)]