20123497725

素因数分解:

$3^1\times 5^2\times {\mathrm{179}}^1\times {\mathrm{313}}^1\times {\mathrm{4789}}^1$

素因数の和:5294

約数の個数: 48

約数和(自身を含む): 33570619200

約数和(自身を除く): 13447121475

約数列:

[1, 3, 5, 15, 25, 75, 179, 313, 537, 895, 939, 1565, 2685, 4475, 4695, 4789, 7825, 13425, 14367, 23475, 23945, 56027, 71835, 119725, 168081, 280135, 359175, 840405, 857231, 1400675, 1498957, 2571693, 4202025, 4286155, 4496871, 7494785, 12858465, 21430775, 22484355, 37473925, 64292325, 112421775, 268313303, 804939909, 1341566515, 4024699545, 6707832575, 20123497725]

約数ペア:

[(1, 20123497725), (3, 6707832575), (5, 4024699545), (15, 1341566515), (25, 804939909), (75, 268313303), (179, 112421775), (313, 64292325), (537, 37473925), (895, 22484355), (939, 21430775), (1565, 12858465), (2685, 7494785), (4475, 4496871), (4695, 4286155), (4789, 4202025), (7825, 2571693), (13425, 1498957), (14367, 1400675), (23475, 857231), (23945, 840405), (56027, 359175), (71835, 280135), (119725, 168081)]