72009025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 105046848

約数和(自身を除く): 33037823

約数列:

[1, 5, 11, 17, 25, 55, 73, 85, 187, 211, 275, 365, 425, 803, 935, 1055, 1241, 1825, 2321, 3587, 4015, 4675, 5275, 6205, 11605, 13651, 15403, 17935, 20075, 31025, 39457, 58025, 68255, 77015, 89675, 169433, 197285, 261851, 341275, 385075, 847165, 986425, 1309255, 2880361, 4235825, 6546275, 14401805, 72009025]

約数ペア:

[(1, 72009025), (5, 14401805), (11, 6546275), (17, 4235825), (25, 2880361), (55, 1309255), (73, 986425), (85, 847165), (187, 385075), (211, 341275), (275, 261851), (365, 197285), (425, 169433), (803, 89675), (935, 77015), (1055, 68255), (1241, 58025), (1825, 39457), (2321, 31025), (3587, 20075), (4015, 17935), (4675, 15403), (5275, 13651), (6205, 11605)]