72139905

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 129078144

約数和(自身を除く): 56938239

約数列:

[1, 3, 5, 9, 15, 45, 67, 71, 201, 213, 335, 337, 355, 603, 639, 1005, 1011, 1065, 1685, 3015, 3033, 3195, 4757, 5055, 14271, 15165, 22579, 23785, 23927, 42813, 67737, 71355, 71781, 112895, 119635, 203211, 214065, 215343, 338685, 358905, 1016055, 1076715, 1603109, 4809327, 8015545, 14427981, 24046635, 72139905]

約数ペア:

[(1, 72139905), (3, 24046635), (5, 14427981), (9, 8015545), (15, 4809327), (45, 1603109), (67, 1076715), (71, 1016055), (201, 358905), (213, 338685), (335, 215343), (337, 214065), (355, 203211), (603, 119635), (639, 112895), (1005, 71781), (1011, 71355), (1065, 67737), (1685, 42813), (3015, 23927), (3033, 23785), (3195, 22579), (4757, 15165), (5055, 14271)]