18788958145

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{337}}^1\times {\mathrm{1229}}^1$

素因数の和:1825

約数の個数: 32

約数和(自身を含む): 23268136320

約数和(自身を除く): 4479178175

約数列:

[1, 5, 43, 211, 215, 337, 1055, 1229, 1685, 6145, 9073, 14491, 45365, 52847, 71107, 72455, 259319, 264235, 355535, 414173, 1296595, 2070865, 3057601, 11150717, 15288005, 17809439, 55753585, 87390503, 89047195, 436952515, 3757791629, 18788958145]

約数ペア:

[(1, 18788958145), (5, 3757791629), (43, 436952515), (211, 89047195), (215, 87390503), (337, 55753585), (1055, 17809439), (1229, 15288005), (1685, 11150717), (6145, 3057601), (9073, 2070865), (14491, 1296595), (45365, 414173), (52847, 355535), (71107, 264235), (72455, 259319)]