20120907725

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1\times {\mathrm{2437}}^1$

素因数の和:2726

約数の個数: 48

約数和(自身を含む): 26511553152

約数和(自身を除く): 6390645427

約数列:

[1, 5, 23, 25, 83, 115, 173, 415, 575, 865, 1909, 2075, 2437, 3979, 4325, 9545, 12185, 14359, 19895, 47725, 56051, 60925, 71795, 99475, 202271, 280255, 330257, 358975, 421601, 1011355, 1401275, 1651285, 2108005, 4652233, 5056775, 8256425, 9696823, 10540025, 23261165, 34992883, 48484115, 116305825, 174964415, 242420575, 804836309, 874822075, 4024181545, 20120907725]

約数ペア:

[(1, 20120907725), (5, 4024181545), (23, 874822075), (25, 804836309), (83, 242420575), (115, 174964415), (173, 116305825), (415, 48484115), (575, 34992883), (865, 23261165), (1909, 10540025), (2075, 9696823), (2437, 8256425), (3979, 5056775), (4325, 4652233), (9545, 2108005), (12185, 1651285), (14359, 1401275), (19895, 1011355), (47725, 421601), (56051, 358975), (60925, 330257), (71795, 280255), (99475, 202271)]